cos theta sin (90°-theta) + sin theta cos(90°-theta)=1
Answers
Answered by
1
Answer:
Given,
sinθcos(90
o
−θ)+cosθsin(90
o
−θ)
=sinθsinθ+cosθcosθ
=sin
2
θ+cos
2
θ
=1
1 is the answer
Similar questions