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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.
| 7551. |
SinA+sinB+sinC=4cosA/2 cosB/2 cos c/2 |
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| 7552. |
If two set are equal and diffrent union and intersection theorm |
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| 7553. |
Find equation of a line passing throug the point (2,2) and whose sum is 9 |
| Answer» 2x + y =6 or x + 2y = 6 | |
| 7554. |
What is the value of sigma? |
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Answer» Sum of total data.☺️ It means "sum of" |
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| 7555. |
What mean by sets |
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Answer» A well defined collection of objects is called a set Collection of objects |
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| 7556. |
How to find domain of sin x |
| Answer» Domain means value of x here we can take x = anything. | |
| 7557. |
Equation of ellipse |
| Answer» (x/a)^2 + (y/b)^2 | |
| 7558. |
2nC2:nC2=12:1 |
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| 7559. |
However can we draw Van-diagram |
| Answer» With hand | |
| 7560. |
Slope of a line √3x-3y= 3 is |
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Answer» -1/root 3 1/√3 |
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| 7561. |
Lim x secxX?0 |
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Answer» 0 O |
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| 7562. |
Find the sum of the following series upto n terms 1+3+7+13+21................... |
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| 7563. |
find the point on the y axis whose distance from the line x/3+y/4=1 is 4 unit. |
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| 7564. |
Find the sum of first n terms of the series 1.3+3.5+5.7+..... |
| Answer» Let Sn | |
| 7565. |
Find the domain and range of f f(x) =under root (25-x) |
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| 7566. |
What is Morgan\'s law? |
| Answer» ie. (cos®+iSin®)^n=cos(n®)+iSin(n®) | |
| 7567. |
convert 2×4×6×8in factorial form |
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Answer» Yup (4!)^2 |
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| 7568. |
Proof by pmi2+5+8+11+..................+(3n-1)=1/2×n(3n+1) |
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| 7569. |
a wheel make 360revolutions in one minute. through how many radians does it turn in one second? |
| Answer» In 60 sec. Wheel make 360 revolution In 1 sec. Wheel make =360/60=6Angle move in 1 revolution =2pi radianAngle moved in 6 revolution =2pi*6=12pi radian | |
| 7570. |
Limit X approaches to zero sin 5x upon x plus x cube |
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| 7571. |
Derivative of tanx from first principal |
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| 7572. |
Sec8x-1/sec4x-1=tan8x/tan2x.. Prove |
| Answer» L.H.S.={(1-cos8x)×cos4x}/{(1-cos4x)×cos8x}={(1-(1-2sin^2 4x))×cos4x}/{(1-(1-2sin^2 2x))×cos8x}={(2sin^2 4x)×cos4x}/{(2sin^2 2x)×cos8x}={(2sin4x cos4x)×sin4x}/{(2sin^2 2x)× cos4x}={(sin8x)×sin4x}/{(2sin^2 2x)×cos8x}={tan8x×(2sin2x cos2x)/{2sin^2 2x}={tan8x}/{sin2x/cos2x}={tan8x}/{tan2x}=R.H.S. | |
| 7573. |
Yrr is app me jo sample paper h वेसा ही आएगा kya apna question paper????? |
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Answer» Kabhi nhi aaye ga. Yes bro |
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| 7574. |
(sin0 +cos0)25 |
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| 7575. |
Ex. 5.3 |
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| 7576. |
Coin tossed 10 time and head come 3 time and tail come 7 time find the probablity not getting head |
| Answer» 7/10 | |
| 7577. |
Ex6. 3 question no. 10 |
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| 7578. |
Differentiate sec x |
| Answer» sec x . tan x | |
| 7579. |
Let a={1,2,3}and b= {5,6}.Find the number of possible relations from a to b. |
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Answer» Because no. Of relations is equal to the no. Of subsets of A×B.??? 2 raise to 6 or 2^6 |
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| 7580. |
How we can find moduls and arguments of complex no. |
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| 7581. |
Sin 2x from first principles |
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| 7582. |
Find the probability of face cards when two black kings are already lost |
| Answer» 5/26 | |
| 7583. |
tan√x derivation by first principal.? |
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| 7584. |
Find the sum of terms of the series 12+17+23+33+45+.....? |
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| 7585. |
Find the general solution for √3cot square x -4cotx +√3=0 |
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| 7586. |
If cos x = cos y then general equation of x is _______ |
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| 7587. |
Square root of 16-30i |
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Answer» √2. 4√2 |
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| 7588. |
Find the derivation of f(x)=x/1+tanx |
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| 7589. |
Draw graph of f(x)=mod of x+3 , -5 |
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| 7590. |
Haisosnbshs |
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| 7591. |
Prove that cos²A+cos²(A+2π/3)+cos²(A-2π/3)=3 |
| Answer» ghui | |
| 7592. |
Let u[1,2,3,4,5,6,7,8,9]a=[1,2,3,4]b=[2,4,6,8]andc=[3,45,6] find A |
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| 7593. |
|x-1|-|x-2|=10 find values of x |
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| 7594. |
What is conjucate form of z=1+i√3 |
| Answer» Z=1-i√3 | |
| 7595. |
4th proportion with fraction |
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| 7596. |
Derivation of the formula ncr+ncr-1 |
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| 7597. |
Find the range of the real function f (x)=1-|x-2| |
| Answer» Range (-1,infinite) | |
| 7598. |
If tan(A-B)=sin2B/5-cos2B find tanA:tanB |
| Answer» ans | |
| 7599. |
Questions asked for retest?? |
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| 7600. |
Which books should I practise for maths |
| Answer» CBSE | |