Question

Q: sin (45° + theta) - cos (45°-theta) is equal to
(a) 2cos theta
(b) 0
(c) 2 sin theta
(d) 1​

Answer 1

Answer:

0 Is the answer of the Q

cos (90°- (45° + theta) ) - cos (45° - theta)

cos (45° -theta)- cos (45°-theta)

=0

Answer 2

sin(45+theta)=sin45costheta+cos45sintheta

=1/√2costheta+1/√2sintheta

cos(45-theta)=cos45costheta+sin45sintheta

=1 /√2costheta+1/√2sintheta

sin(45+theta)-cos(45-theta)=0

Plz mark it as the brainliest answer.

Thanking you