Question

Prove that:cos(900−)sin⁡(900−)+ sin(900−).cos⁡(900−)=1

Answer 1

Step-by-step explanation:

xsin(90

∘

−θ)cot(90

∘

−θ)=cos(90

∘

−θ)

xcosθtanθ=sinθ

xcosθ×(

cosθ

sinθ

)=sinθ

∴x=1

Your statement is correct