Question

(iv) sin 0 = cos 0 for all values of 0​

Answer 1

Answer

Sin θ = Cos θ

As we know that the formulae, Sin (90-θ) = Cos θ

on applying the formulae in above equation we get,

Sin θ = Sin (90 - θ)

on comparing both the equations,

θ = 90 - θ

2θ = 90

θ = 45