For for A=133^(@),2cos""A/2is equal to...

For `for A=133^(@),2cos""A/2`is equal to

A

`-sqrt(1+ sin A)-sqrt(1-sin A)`

B

`-sqrt(1+ sin A)+ sqrt(1- sin A)`

C

`sqrt(1+ sin A)- sqrt(1- sin A )`

D

`sqrt(1+ sin A )+ sqrt(1- sin A)`

Verified by Experts

The correct Answer is:

C

Similar Questions

Explore conceptually related problems

If A=133^@ , then 2cos(A/2) is equal to

1+cos^2 2A is equal to

cos2theta is not equal to

cos 1^(@) + cos2^(@) + cos 3^(@) + ….+cos 180^(@) is equal to............. (A) 0 (B) 1 (C) -1 (D) 2

The value of cos 75^(@) cos 15^(@) is equal to .............. A) 1/2 B) (1)/(sqrt2) C) 1/4 D) 1

If A+B+C =pi, then cos ^(2) A+ cos ^(2)B + cos^(2) C is equal to

The value of cos 15^(@) - sin 15^(@) is equal to .................. A) (1)/(sqrt2) B) (1)/(2) C) -(1)/(sqrt2) D) 0

If sin x + sin ^(2) x=1, then the value of cos ^(12) x+3 cos ^(10) x+3 cos ^(8) x + cos ^(6) x-2 is equal to ............. A) 0 B) 1 C) -1 D) 2

The value of cos 75^@ cos15^@ is equal to

int 2sinx cos x dx is equal to