Question

sin (60°+theta) + sin(60°- theta)​

Answer 1

Answer:

√3 cos theta

Step-by-step explanation:

sin(60+theta) = sin60•cos theta + sin theta•cos60

=√3/2cos theta + 1/2sin theta

= (√3cos theta + sin theta)/2

sin(60-theta) = (√3cos theta - sin theta)/2

ACQ,

= sin(60+theta) + sin(60-theta)

=(√3cos theta + sin theta)/2 + (√3cos theta - sin theta)/2

=( √3cos theta + sin theta + √3cos theta -sin theta)/2

= 2√3cos theta / 2

= √3 cos theta