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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.
| 6901. |
Exercise 13.1all sums small explanation required |
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| 6902. |
What is the value of 40c10 +40c11 +40c12+....+50c20 |
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| 6903. |
I want the domain and range of all functions..... Chapter - relations and functions |
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| 6904. |
Find the A.M between3.7and 5.5 |
| Answer» 4.6 | |
| 6905. |
Root over -2 whole squre |
| Answer» 2 | |
| 6906. |
find the range of the function. f(x)=x ÷ |x| |
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| 6907. |
IF 1/x+y,1/2y,1/y+z are in good then show that xerox,you,z are in gp |
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| 6908. |
How many terms are in following (2x + 3y - 4z)raise to the power \'n\' |
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| 6909. |
Limit x tends to π/4 1-tan^2/cosx-sinx |
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| 6910. |
Limit x tends to π/2 1-sinx/(π-2x)^2 |
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| 6911. |
Limit tends to 1 x^2-√x/√x-1 |
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| 6912. |
5x + 5x equal to 10+10 |
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| 6913. |
Solve it 32 x +42y=78xy+2ab |
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| 6914. |
slabus for sa 1of 11 |
| Answer» Bhai syllabus hota hai slabus nhi | |
| 6915. |
What are the points on the y axis whose distance from the line x÷3 +y÷4=1 is 4units. |
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| 6916. |
If x, y, z are positive integers, then prove that (x+y) (y+z) (z+x) >8xyz |
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| 6917. |
If a,b,c are in GP then prove that 1/(a²-b²) +1/b²=(a+c)/b |
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| 6918. |
How to factrolise4p2 |
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| 6919. |
If a,b,c are in GP, then prove thata(b²+c²) =c(a²+b²) |
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| 6920. |
Find the coefficient of x is the expan |
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| 6921. |
The coefficient of x |
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| 6922. |
CosA =sinB/sinC.then proof Angle A=60degree |
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| 6923. |
Find the general term of an A.P. give by x+b,x+3b,x+5b,------- |
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| 6924. |
Find the range of y square = 16 - x square |
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| 6925. |
If m,n,p,q are consecutive integers,then find the value of i\'m+in+ip+iq |
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Answer» m=nn=n+1p=n+2q=n+3now put n=0 then solve you get answers 0 0 |
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| 6926. |
Find the image of the of the point (3,8) with respect to the line x+3y=7 |
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| 6927. |
(aub) \' drow the Venn diagram |
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| 6928. |
(2/x - x/2)5 expand by using binomial theorem |
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| 6929. |
Y do parallel lines in a plane hav same coordinates |
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| 6930. |
Value of log (x-1) |
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| 6931. |
Find multiplicative inverse of 5-i/1+i |
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| 6932. |
the group of beautiful girls is |
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Answer» It is not defined set It is not a set becz beautiful is not defined |
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| 6933. |
Prove : [cos3x+2cos5x+cos7x]/[cosx+2cos3x+cos5x] = cos2x - sin2x.tan3x |
| Answer» (cos7x+cos3x)+2cos5x/(cos5x+cosx)+2cos3x. ........2cos5xcosx+2cos5x/2cos3xcos2x+2cos3x.......2cos5x (cos2x+1)/2cos3x (cos2x+1)....cos5x/cos3x.....cos (3x+2x)/cos3x......cos3xcos2x-sin3xsin2x/cos3x..cos3xcos2x/cos3x-sin3xsin2x/cos3x....cos3x-sin3xsin2x. .....solved | |
| 6934. |
Cos4x+cos2x+cos3x÷sin4x+sin2x+sin3x=cot3x |
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| 6935. |
The sum of first three terms of g.p is13/12 and product is -1 find common ratio and terms |
| Answer» Take three terms as a/r, a & ar now product of these three is -1 so a equals -1 now using there sum a can be calculated and then the terms | |
| 6936. |
Question number 8.(i) of permutations and combination of class 11RS AGGARWAL o |
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| 6937. |
Example no 14 Ch 3 ncert |
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Answer» Example 14: {tex}cos 2x = cos^2x – sin^2 x = 2 cos^2 x – 1 = 1 – 2 sin^2 x = 1-tan^2x/1+tan^2x{/tex}solution :we know that\xa0{tex}cos (x + y) = cos x cos y – sin x sin y{/tex}Replacing y by x, we get{tex}cos 2x = cos^2x – sin^2 x = 2 cos^2 x – 1 {/tex}{tex}= cos^2 x – (1 – cos^2 x) = 2 cos^2x – 1{/tex}Again,{tex}cos 2x = cos^2 x – sin^2 x{/tex}{tex}= 1 – sin^2 x – sin^2 x = 1 – 2 sin^2 x.{/tex}we have,{tex} cos 2x = cos^2 x – sin ^2 x =(cos^2 x – sin ^2 x) /(cos^2 x +sin ^2 x){/tex}Dividing each term by\xa0{tex}cos^2x{/tex}\xa0we get,{tex}cos 2x = 1-tan^2x/1+tan^2x{/tex}Hence Verified. Gud one |
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| 6938. |
How to do calculatins very fast and accurate |
| Answer» Practise daily as making some bodmas calculations.or numericals. | |
| 6939. |
Prove that 1/9! + 1/10! + 1/11! = 122/11! |
| Answer» 1/9!(1/1 + 1/10 + 1/11×10)1/9!(10×11+11+1)/11×101/9! (122/11×10)122/11×10×9!122/11! | |
| 6940. |
Is sin = 1/cosec |
| Answer» Yes | |
| 6941. |
In any quadrilateral ABCD , find the value of sin (A+B) + sin (C+D) |
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| 6942. |
Linear inequalities word problem |
| Answer» Hmm | |
| 6943. |
What is Fibonacci series? ??????? |
| Answer» 1,2,3,5,8,13...... Go on adding the preceding number.... | |
| 6944. |
prove binomial theorem |
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| 6945. |
Find the equations of the medians of the triangle ABC whose vertices are A(2,5),B(-4,9)C(-2,-1). |
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| 6946. |
Sir can you please tell me .what shoud be good policy to get good mark in math .? |
| Answer» Solve more more more questions I bat you get good marks | |
| 6947. |
Value of 10 raised to -3. |
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| 6948. |
How to find general and principal solution |
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| 6949. |
What are main formulas of trignometry |
| Answer» {tex}\\begin{array}{l}The\\;reciprocal\\;identities\\;are\\;given\\;as:\\;\\;\\\\Cosec\\Theta=1/\\sin\\Theta\\;\\;\\\\sec\\Theta=1/\\cos\\Theta\\;\\;\\\\cot\\Theta=1/\\tan\\Theta\\;\\;\\\\\\sin\\Theta=1/Cosec\\Theta\\;\\;\\\\\\cos\\Theta=1/sec\\Theta\\;\\;\\\\\\tan\\Theta=1/cot\\Theta\\\\\\end{array}{/tex} | |
| 6950. |
Prove this by principle of mathematical induction:-(cosA+isinA)^n=(cosnA+isinnA) |
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