Home
Class 11
MATHS
If sin alpha + cos alpha = b then sin 2...

If `sin alpha + cos alpha = b` then sin `2 alpha` is equal to . . . . .

A

`b^(2) -1 if b le sqrt(2)`

B

`b^(2) -1 if b gt sqrt(2)`

C

`b^(2) - 1 if b ge 1`

D

`b^(2) - 1 if b ge sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
Promotional Banner

Topper's Solved these Questions

  • SAMPLEPAPER - 15 (UNSOLVED)

    FULL MARKS|Exercise Part - II (II. Answer any seven questions. Question no . 30 is compulsory.)|10 Videos

  • SAMPLEPAPER - 15 (UNSOLVED)

    FULL MARKS|Exercise Part - III (III. Answer any seven questions. Question no . 40 is compulsory.)|10 Videos

  • SAMPLE PAPER-6 (UNSOLVED)

    FULL MARKS|Exercise PART-IV|6 Videos

  • SETS, RELATIONS AND FUNCTIONS

    FULL MARKS|Exercise Exercise -1.5|25 Videos

Similar Questions

Explore conceptually related problems

if cos alpha + sin alpha = 3/4 , then sin ^6 alpha + cos ^6 alpha =

IF cos ( alpha + beta ) =0 then sin ( alpha + 2 beta ) is equal to

IF cot ( alpha + beta ) =0 then sin ( alpha + 2 beta ) is equal to

If x sin ^3 alpha + y cos^3 alpha = sin alpha cos alpha and x sin alpha - y cos alpha =0 , then x^2 +y^2 is

The sides of a triangle are sin alpha , cos alpha and sqrt( 1+ sin alpha cos alpha ) for some 0 lt alpha lt pi/2 then the greater angle of the triangle is

sin 3 alpha = 4 sin alpha sin(x + alpha) sin(x-alpha)

If cos alpha + cos beta = 1//2 and sin alpha+ sin beta = 1//3 , then

if alpha , beta are two distinct solutions of a sin theta + b cos theta =c than tan ( alpha + beta)/(2) is equal to

If n=1,2,3,……. then cos alpha cos 2 alpha cos 4 alpha ……. Cos 2^(n-1) alpha is equal to

If cos alpha + cos beta =0 = sin alpha + sin beta , then cos 2 alpha + cos 2 beta is equal to