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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.
| 6051. |
Which term of the sequence/A.P. 20,77/4,37/2,71/4,..... is the first negative term |
| Answer» 27 | |
| 6052. |
5.4pr=6.5pr_1 |
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| 6053. |
Cosacosa/2-cos3acos9a/2 |
| Answer» | |
| 6054. |
Find the ninth term in the expansion of [x/a -3a/x^2]^12. |
| Answer» | |
| 6055. |
Sin20sin40sin60sin80 =1/16 |
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| 6056. |
What is cosine formula |
| Answer» | |
| 6057. |
iota -39 |
| Answer» 1 | |
| 6058. |
Prove that : tan A + tan ( 60° + A ) - tan ( 60° - A ) = 3 tan 3A |
| Answer» | |
| 6059. |
sin20 sin40 sin60 sin80 = ?? |
| Answer» | |
| 6060. |
(A-B) =? |
| Answer» A | |
| 6061. |
Cos^4 π/8+ cos^4 3π/8+ cos^4 5π/8 + cos^4 7π/8 |
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| 6062. |
What is power set |
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| 6063. |
Underroot 9+x sq. Is less than zero |
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| 6064. |
What is natural and whole number |
| Answer» Natural no.=1,2,3,4,5,6,7................ Whole no.=0,1,2,3,4,5,6,7................ | |
| 6065. |
Solve the equation, |z+1|=z+2(1+i)where z is a complex number |
| Answer» | |
| 6066. |
If (n+2)!=210×(n-1)! Then value of n is |
| Answer» The answer of n is always 1 | |
| 6067. |
Which chapter is most important in maths? |
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Answer» Chapter-3,6?? Trignometry |
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| 6068. |
(x-x³)⅓÷(x³)⅓ |
| Answer» {tex}(x-x^3)^{1\\over 3}\\over (x^3){1\\over 3}{/tex}Taking cube of both numerator and denominator, we get{tex}(x-x^3)^3*{1\\over 3} \\over(x^3)^3*{1\\over 3}{/tex}\xa0=\xa0{tex}(x-x^3)\\overx^3{/tex}{tex}x(1-x^2)\\overx^3{/tex}\xa0=\xa0{tex}(1-x^2)\\overx^2{/tex}.\xa0\xa0\xa0 | |
| 6069. |
√2i_√_2i=? What is module |
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| 6070. |
A=√2 i=? |
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| 6071. |
√i=? What is explaination |
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| 6072. |
F(x)= x3+x2+1/x |
| Answer» | |
| 6073. |
The distance of the point (2,3) from the line 2x-3y+9=0 measured along a line x-y+1=0 is |
| Answer» | |
| 6074. |
Find polar form of 1 + tan(iota ) |
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| 6075. |
Binomial |
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| 6076. |
Find least positive integer n such that 2i upon 1+i whole power n is an integer |
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| 6077. |
Spilt tan2 x/2 |
| Answer» | |
| 6078. |
Is there are SA 1 question paper for maths |
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| 6079. |
cot4x(sin5x+sin3x)=cotx(sin5x-sin3x) |
| Answer» LHS Cot4x (sin5x+sin3x)=2cos4xcosx RHS=cotx (sin5x-sin3x)=2cos4xcosx | |
| 6080. |
If the set A has 3 elements and the set B = { 3, 4, 5 } , then find the number of elements in (A×B). |
| Answer» As in set b there are 3elements so N(a*b)=3*3=9 | |
| 6081. |
How to we found argument in complex no |
| Answer» | |
| 6082. |
if a=b then what is a |
| Answer» a is a english alphabet | |
| 6083. |
Prove that : sec 8 theta-1/sec 4 theta-1 = tan 8 theta/tan 2 theta |
| Answer» sec8θ−1/sec4θ−1\xa0=tan8θ/tan2θOr\xa0sec8θ−1/tan8θ=sec4θ−1/tan2θLHS\xa0=1/cos8θ−1/sin8θ/cos8θ=1−cos8θ/sin8θ =2sin2(4θ)/2sin4θcos4θ\xa0=tan4θRHS=sec4θ−1/tan2θ\xa0=1/cos4θ−1/tan2θ=1−cos4θ/cos4θ(tan2θ)=2sin2(2θ)cos4θ×sin2θcos2θ=2sin2θcos2θcos4θ=sin4θ/cos4θ=\xa0tan4θ\xa0=\xa0LHS | |
| 6084. |
Sinxsinxsinxsinxsinxsinx+cosxcosxcosxcosxcosxcosx= |
| Answer» | |
| 6085. |
prove that (b-c)(cotA/2)+(c-a)cotB/2+(a-b)cotC/2=0 |
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| 6086. |
How to calculate amplitude and argument in complex number |
| Answer» | |
| 6087. |
write {x:x is a real root of x²+2x+3=0} in roaster form |
| Answer» Since discriminant of x is less than 0 ,therefore there is no real roots.so the set is {} means it is empty set. | |
| 6088. |
Jebrv |
| Answer» | |
| 6089. |
For every positive integer n, prove that 7 power n minus 3 power n is divisible by 4 |
| Answer» Step 1,For n =17^1-3^1=4.which is divisible by 4.Step 2,Given statement is true for n=1,It must be true for n=k, 7^k-3^k=(M) 4 [As it is divisible by 4, let =(M) 4 where M is a positive integer.]...... (1)Step 3,For n=k+1,7^(k+1)-3^(k+1)7^k×7^1-3^k×3^1Using equation (1) {(M) 4+3^k} ×7^1-3^k×3^1(M) 4×7+3^k×7-3^k×37(M)4+3^k(7-3)7(M)4+3^k×47(M)4+3^k×(M)47 is multiplied with number which is divisible by 4 and added to positive number which is also divisible by 4.Therefore the resultant is also a divisible by 4. | |
| 6090. |
f(x + 1/x) = xsq + 1/xsq , x is not equal to 0 , find the value of f(x) |
| Answer» | |
| 6091. |
Find permutation of arranging 4 students from 6 students? |
| Answer» 360 | |
| 6092. |
Cos theta cos theta by 2 minus Cos 3 theta cos 9 theta by 2 |
| Answer» | |
| 6093. |
Sin20sin40sin60sin80 |
| Answer» 3/16 | |
| 6094. |
What is the formula of find trigonometry angle |
| Answer» | |
| 6095. |
How to attempt maths paper |
| Answer» To use of blue pen.?? | |
| 6096. |
What is the formula for finding permutation |
| Answer» n!/(n-r)! | |
| 6097. |
Please post here some important trigonometry functions |
| Answer» | |
| 6098. |
Complex no |
| Answer» | |
| 6099. |
i37 +1/i67 |
| Answer» | |
| 6100. |
How many hours science stream CBSE student should study TOO SCORE 90% + MARKS |
| Answer» 2 and half hours only .But learn fr your heart and smartly. Don\'t memorize instead understand concept. | |