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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 2001. |
i^593+i^540+i^586+i^584/i^594+i^580+i^578+i^579 |
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| 2002. |
Law of triangle vector |
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Answer» A setbuilder Trigonometry Set belders fom |
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| 2003. |
(1+i) raise to power 4 into (1+1/i) raise to power 4. Find it. |
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Answer» Question is complete Question is not complete or |
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| 2004. |
Ncert excercise 4.1 question 20 |
| Answer» See on this app | |
| 2005. |
How we solved questions of mathematical induction in 3rd step |
| Answer» In third step we have to put p( n )is equal to K + 1 and then prove L H S equal to the R H S | |
| 2006. |
The set X = +/- 4 and 2x = 6 |
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| 2007. |
How to learn maths |
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Answer» Make ur concept clear first...then practice.. First of all you can\'t learn maths it is a subject which can understood and then apply.You mean how to get good marks in maths ,that can be happen when you will concentrate in class and then do practice of all that matter which you have understood in the class at home daily then ,during exam time if you will do two or one question of each type you can score better marks.Hope so it will help you.......Good luck Practice Anyone can learn maths whether they\'re in higher maths at school or just looking to brush up on the basics.After discussing ways to be a good math student ,this article will teach you the basic progression of maths courses and will give you the basic elements that you\'ll need to learn in each course.then the article will go through the basics of learning arthimetic which will help both kids and elementary school and anyone else who needs to brush up on the fundamentals. You can not learn maths u have to undrestand it??? |
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| 2008. |
2×6 |
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Answer» 12 Bro,It is so tipicall i can\'t do this Don\'t put questions like thik 12 yaar 12 ??what type of question is it bro ..... 12 |
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| 2009. |
sin5π\\12 - sinπ\\12/cos5π\\12 + cosπ\\12 |
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| 2010. |
What is the velocity |
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Answer» The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. But firstly u have to learn acceleration and retardation Exactly as sia Sia is right |
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| 2011. |
tan 3x formula |
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Answer» (3tanx - tan^3x)/(1 - 3tan^2x) sin5π\\12 - sinπ\\12\\cos5π\\12 + cosπ\\12 It is given in the summary of our NCERT book...... |
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| 2012. |
Ch-4 5th sum from let n=k+1 |
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| 2013. |
Ch-4 5th sum from k+1 |
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| 2014. |
If Sin(x+y)/sin(x-y)=a+b/a-b . Prove that tanx/ tany=a/b |
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| 2015. |
15 pr=2730 find r |
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| 2016. |
Factarice (x+1)(x+2)(x+3)(x+4)-3=p(x) |
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| 2017. |
15pr=2730 |
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| 2018. |
What is square root |
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Answer» Yes R u asking for complex no. |
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| 2019. |
Difference between "belongs to" and "subset". |
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Answer» uppose,A={1,2,3,4,5,6}B={2,4,6}In this condition, every element in B is contained in A so,B(ABut however, B is the set of even numbers and A is the set of natural numbers and thus they are very different in terms of n.We write even number as 2n whereas natural number just n.So, B doesn\'t belong to A. Agar aditi Angel mile th plzz contact with me 1. "Belongs to".....if we say a belongs to A , it means a is itself an element of A or a is a member of A. 2."subset"......it is defined as part of a set.If we say set B is a subset of set A it means each element of B is a member of set A. Btt meanings r same nearly btt what is different in both......ex- if A ={1,2,3,4} then u can simply write 2 belongs to A btt to write as a subset u will have to write { 2} is a subset of A. ......well it is a nice question.it made think a little longer?? hope u will understand... |
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| 2020. |
Meaning of permutations |
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Answer» A continuous product of natural numbers which can be arranged in order and the order is important. Changing of order of any object or things Any of the ways we can arrange things, where the order is important.Example: You want to visit the homes of three friends ("a"), ("b") and ("c"), but haven\'t decided in what order. What choices do you have?Answer: {a,b,c} {a,c,b} {b,a,c} {b,c,a} {c,a,b} {c,b,a}\xa0 All formula chpater 3 |
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| 2021. |
Prove that sin²6x-sin²4x = sin2x sin10x |
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Answer» Taking RHS sideSin2x sin10xSin(6x-4x) sin(6x+4x)(Sin6xcos4x - cos6xsin4x)(sin6xcos4x+cos6xsin4x) : (since-sin(A+B)=sinAcosB+sinBcosA)(sin(A+B)=sinAcosB- sinBcosA)Sin^2(6x)cos^2(4x) - cos^2(6x)sin^2(4x)Sin^2(6x)(1 - sin^2(4x)) - (1 - sin^2(6x))sin^2(4x)Sin^2(6x) - sin^2(4x)sin^2(4x) - sin^2(4x) + sin^2(6x )sin^2(4x)Sin^2(6x) - sin^2(4x) Hence . Proved Thank you? LHS= sin(6x-4x)sin(6x+4x) =sin2xsin10x = RHS |
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| 2022. |
a+ar+ar*2+....+ar*n-1=a(r*n-1)/r-1 |
| Answer» Let P(n) = a + ar + ar2 + ..... + arn-1{tex} = \\frac{{a({r^n} - 1)}}{{r - 1}}{/tex}.For n = 1{tex}P(1) = a{r^{1 - 1}} = \\frac{{a({r^1} - 1)}}{{r - 1}} \\Rightarrow a = a{/tex}{tex}\\therefore {/tex}\xa0P(1) is trueLet P(n) be true for n = k{tex}\\therefore P(k) = a + ar + a{r^2} + .... + a{r^{k - 1}}{/tex}{tex} = \\frac{{a({r^k} - 1)}}{{r - 1}}{/tex}\xa0.... (i)For n = k + 1R.H.S. {tex} = \\frac{{a({r^{k + 1}} - 1)}}{{r - 1}}{/tex}L.H.S. {tex} = \\frac{{a({r^k} - 1)}}{{r - 1}} + a{r^k}{/tex}\xa0[ Using (i)]{tex} = \\frac{{a{r^k}}}{{r - 1}} - \\frac{a}{{r - 1}} + a{r^k}{/tex}{tex} = a{r^k} \\cdot \\left( {\\frac{1}{{r - 1}}+1} \\right) - \\frac{a}{{r - 1}} = \\frac{{a{r^{k + 1}}}}{{r - 1}} - \\frac{a}{{r - 1}}{/tex}{tex} = \\frac{{a{r^{k + 1}} - a}}{{r - 1}}{/tex}{tex} = \\frac{{a({r^{k + 1}} - 1)}}{{r - 1}}{/tex}{tex}\\therefore {/tex}\xa0P(k + 1) is trueThus P(k) is true {tex} \\Rightarrow {/tex}\xa0P(k + 1) is trueHence by principle of mathematical induction, P(n) is true for all {tex}n \\in N{/tex}. | |
| 2023. |
a and b are two sets such that n(a-b)=14+x, n(b-a)=3x and n(a n b)=x find x and draw venn diagram |
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| 2024. |
Question 9 of excercise 8.2 |
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| 2025. |
Complex number questions |
| Answer» Bro just solve rd sharma and u will get all types of questions of complex no.s | |
| 2026. |
Cosa cos 2a cos 2^2a ... cos 2^(n-1)a=sin 2^na/2^n sina |
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| 2027. |
Sec22x=4 |
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| 2028. |
Find principal solutions of sec2x=4 |
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| 2029. |
Chapter 6 miscellaneous number 3&4 |
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| 2030. |
If cosa= -3/5 , π |
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| 2031. |
If Cosa=-3/5 then find cosec a-cota/seca+tana. 180 |
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| 2032. |
Find the solution in two dimensional plan. 2x +4y |
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| 2033. |
(√5-√3i)(√5+√3i)² express in A+iB |
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| 2034. |
80 rupye ke 50 percent me ka 25 percent kharch ho jata hai to kul kitne rupye bache |
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Answer» 70 rupees 70 rupees 70 10 rupees |
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| 2035. |
i^998 write in the form of a+ib |
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Answer» 0-1 O+i^998 or 0+i^2 then 0+(-1) after that solved 0-1 is your answer in the form of a+ib... |
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| 2036. |
Find the P.M.I of the statement 1*2+2*2^2+3*2^3+-----------+n*2^n=(n-1)*2^n+1+2 |
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| 2037. |
sum of (2n-1)^2 |
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| 2038. |
What is relation and function? |
| Answer» Relation is a subset of cartesian product . And function is defined as that A and B are the cartesian product if A has unique image in B. | |
| 2039. |
Insert five number between 8 and 26 such that the resulting sequence is an A.P. |
| Answer» Let A1, A2, A3, A4, and A5\xa0be five numbers between 8 and 26 such that8, A1, A2, A3, A4, A5, 26 is an A.P.Here,\xa0a\xa0= 8,\xa0b\xa0= 26,\xa0n\xa0= 7Therefore, 26 = 8 + (7 – 1)\xa0d⇒ 6d\xa0= 26 – 8 = 18⇒\xa0d\xa0= 3A1\xa0=\xa0a\xa0+\xa0d\xa0= 8 + 3 = 11A2\xa0=\xa0a\xa0+ 2d\xa0= 8 + 2 × 3 = 8 + 6 = 14A3\xa0=\xa0a\xa0+ 3d\xa0= 8 + 3 × 3 = 8 + 9 = 17A4\xa0=\xa0a\xa0+ 4d\xa0= 8 + 4 × 3 = 8 + 12 = 20A5\xa0=\xa0a\xa0+ 5d\xa0= 8 + 5 × 3 = 8 + 15 = 23Thus, the required five numbers between 8 and 26 are 11, 14, 17, 20, and 23. | |
| 2040. |
find the sum to n term of the sequence,8,88,888,8888...... |
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| 2041. |
Will i be able to score 90+ in board for math only using ncert? |
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Answer» Deffenintly, all the questions are asked under ncert Moreover do rd or any reference which ur school prefer as it is local exam so u have to look for what\'s going on in school Yes u can by using nccert exemplar book Yes u may..but only ncert wil not help u dear Karan@diti? |
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| 2042. |
(A - B) u (B - A )= |
| Answer» May be......………………… AUB-A intersection B | |
| 2043. |
What is 0! |
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Answer» 0 is an even number It is nothing else than that horrible number which i got in social and hindi in my pre boards when i was in thenth claas?????????still feeling good for that????? What do u mean aditi?? Undefined number Binary numbers are 0 & 1@diti? I think it will be 0 |
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| 2044. |
A\'UB=U, then show that Ais a subset of B |
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| 2045. |
secA-1=(√2-1)tanA |
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| 2046. |
Limx-2 (x3+8/x+2) |
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| 2047. |
Bhiya formulae bta do |
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Answer» There are so many...........they are available in ncert book......you can consult from there 3rd chapter Pls tell the chapter first Of which chapter |
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| 2048. |
Can i add sin 3x + sin 9x as simply |
| Answer» Nope u have to use formula of sinA+sinB | |
| 2049. |
Hi yash anurag astha any one. |
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Answer» Ya And me aditis bf honey Me Aditi |
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| 2050. |
Why _ and _ =+ |
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Answer» Because according to mathematicians - ve ×-ve equals to positive I think this question is not level of cls 11thIf u want to good score u have u increase ur levelBy the way ur answer is - cancel out - then it becomes + ??? + and + =+ |
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