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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.
| 7851. |
Draw the graph of modulus x+2;1-modulus x-1. |
| Answer» Kaha draw kare | |
| 7852. |
Find sum to n terms of:- 1/1×2+1/2×3+1/3×4+.......... |
| Answer» Wjw | |
| 7853. |
If n(a) is equal to 4 and the total relations inA*B is 2power 12 find n(b) |
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| 7854. |
maximum value of sin x cos x |
| Answer» 1 | |
| 7855. |
A\'nb\' |
| Answer» Draw a venn diagram of A\'intersectionB\' | |
| 7856. |
Which is universal set? |
| Answer» Universal set is a set where all the elements of other set will be presented....... | |
| 7857. |
Graph of sin ( x+π/4) |
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| 7858. |
Rs aggarwal class 11 th solution |
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| 7859. |
Two equivalent sets are always equal. Is it true or false and give reason if it is true. |
| Answer» False because in equivalent set elements are not necessarily same. | |
| 7860. |
Long powerful at the base of X - 1 is equal to 1 plus log x - 1 at the base of to |
| Answer» | |
| 7861. |
Cos 20 degree into cos 40 degree into cos 6th degree into cos 80 degree |
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| 7862. |
Cos 12th degree into cos 40 degree into cos 6th degree into cos 80 degree |
| Answer» | |
| 7863. |
What is set-builder form |
| Answer» A Set is a collection of things (usually numbers). Example: {5, 7, 11} is a set. But we can also "build" a set by describing what is in it. Here is a simple example of set-builder notation: It says "the set of all x\'s, such that x is greater than 0". | |
| 7864. |
The number of solutions of the equation Sin3alpha = 4sinalpha× sin(x+alpha)×sin(x-alpha) where 0 |
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| 7865. |
What is a^2+b^2 |
| Answer» (a + b)^2 = a^2 + b^2 + 2ab(a - b)^2 = a^2 + b^2 - 2abSo, a^2 + b^2 formula can bea^2 + b^2 = (a + b)^2 - 2aba^2 + b^2 = (a - b)^2 + 2ab | |
| 7866. |
What is the square root -15-8i |
| Answer» | |
| 7867. |
The set (A intersection B\')\'union (B intersection C) is equal to A\'union B union C verify |
| Answer» | |
| 7868. |
Difference between powerset and subset |
| Answer» power set is the set of all the possible subsets of another set.while,subset is just a set of few (or all) elements of that another set. | |
| 7869. |
(x+9)3=? |
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Answer» -9 (x+9)3=..Then multiply 3 with the term inside the brackets.....It will come3x+273x=-27x=-9... 3x+27 3x=-27x=-9 =3x+27=-9 =3x+27=-9 |
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| 7870. |
What is property of modulas. |
| Answer» Proof of the properties of the modulusProof of the Triangle Inequality #1:1. |z1 + z2|<=|z1| + |z2||z1 + z2|= square 1. |z1| + |z2|= square 2.We have to prove that square 1square 2 is true. Square both sides. equation square 3.2x1x2 +2y1y2 <= square 4Square both sides again. 2x1x2y1y2 <= x12y22 + y12x22 and we get0<=(y1x2 - x1y2)2.It is true because x1, x2, y1, y2 are all real.Proof of the Triangle Inequality #2:2. |z1 + z2|>=|z1| - |z2|We have to prove that square 1square 5 is true. Square both sides. >= - square 4.2x1x2 +2y1y2 >=-square 4.Multiply both sides by (-1/2).-(x1x2 +y1y2) <=square 1.Square both sides. - x12x22 - 2x1x2y1y2 - y12y22<= x12x22 + x12y22 + y12x22+ y12y22 and we get0<= (y1x2 + x1y2)2 + 2x12x22 + 2y12y22.It is true because x1, x2, y1, y2 are all real, and squares of real numbers are >=0. | |
| 7871. |
Prove that log5 base 3 is irrational? |
| Answer» | |
| 7872. |
z=i-1/cosπ/3+sinπ/3 in the polar form.... |
| Answer» 4chapter 4.1ex ouestion no.13 | |
| 7873. |
2sin^¤ + √3cos ¤ + 1=0 |
| Answer» | |
| 7874. |
What are the subset ? |
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Answer» Subset is a A×B all elment combine A set A is said to be a subset of set B if every element of A is also an element of A is also an element of B. |
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| 7875. |
Chill yaar ???? |
| Answer» | |
| 7876. |
If z1=1+i and z2=_2+4i, prove that IM(z1*z2/1-i)=2 |
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| 7877. |
Centre (-2,3) and radius 4 |
| Answer» | |
| 7878. |
Find the value of sin(6*90+60) |
| Answer» Sin(600)Sin(pi+240pi÷360)-sin240pi÷360-sin(240×180÷360)-sin120-sin(2×60)-2sinx×cosx-2×sin60×cos60-2×(root3÷2)×1÷2-root3÷2 answer | |
| 7879. |
Write the greatest square number of 8 digit which is exactly divisible by 48,72and 108 |
| Answer» | |
| 7880. |
Every set has at least two subsets true or false and give reason if it is true. |
| Answer» TRUE. Every set has at least two subsets because (1.) Every set is a subset of itself. and (2.) Empty set is a subset of everyset. | |
| 7881. |
What do you mean by linear inepualities |
| Answer» Linear inequality is an inequality which involves a linear function. | |
| 7882. |
What do you mean by superset |
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Answer» When set A is subset of set B and set A is not equal to set B. Then, set A is called proper subset of set B and set B is known as SUPERSET. A set in which all the given sets are founded is called superset |
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| 7883. |
Prove that A⊆B,B⊆C and C⊆A ⇒ A=c |
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Answer» Question is wrong miss Ishika Mst qustion h???? |
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| 7884. |
Find the value of m (2m+1)x^2+2(m+3)x+(m+5) has equal roots |
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Answer» Wrong answer 868 |
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| 7885. |
The value of X satisfying 18^4x-3=(54root2)^3x-4 is |
| Answer» | |
| 7886. |
What is the range of x2-5/x-5 |
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| 7887. |
If b & c are odd integers, then the equation x2+bx+c = ? |
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| 7888. |
The minute hand of the watch is 1.5cm long. How far does its tip move in 40 minutes use. Pie =3.14 . |
| Answer» Ncert eg. No 4 | |
| 7889. |
If A = cos2θ + sin4θ for all values of θ, then prove that 34 ≤ A ≤ 1. |
| Answer» Check your question firstly | |
| 7890. |
Evaluate : -(i.) sin75° and (ii.) tan15° |
| Answer» i. Sin (30+45)=sin30cos45+cos30sin45=1/2×1/√2 + √3/2×1/√2=1/2√2 + √3/2√2=(1+√3)/2√2=(√2+√6)/4 | |
| 7891. |
R×tanA ×2 where R=609 find tanA |
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| 7892. |
R S Aggarwal ch 11A question no 2 |
| Answer» | |
| 7893. |
2.3 math ncert solution |
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Answer» Download MY CBSE GUIDE APP Download the NCERT Solution |
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| 7894. |
Ex 3.3 qno. 15 |
| Answer» | |
| 7895. |
Prove that 3cos.cos(thita+2π/3).cos(thita+4π/3)=cos3thita |
| Answer» Nhi ata | |
| 7896. |
Find the domain and range of 1/1+x^2 |
| Answer» Domain=All real numbers..........Range= [1,infinity).... | |
| 7897. |
Plz list all the formulae of trigonometric function |
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Answer» See sl arora chapter 0 Ok there are many formulaes so its difficult In whole trigonometry chapter, there are more than 50 formulae so it difficult to write all here.. |
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| 7898. |
Prove that cos8 degree -sin8 degree /cos8 degree +sin8 degree is equal to tan 37 degree |
| Answer» answer | |
| 7899. |
Set (_1,0,1)list of all subsets |
| Answer» Subsets = 2³ (1) , (0) , (-1) , (1,0) , (-1,1) , (-1,0) , (-1,0,1) , fi | |
| 7900. |
(x+y)/(x-y)=√(5)÷√(3) |
| Answer» | |