Question

If
If land = 1 then
√3
the value of
Cos 2 theta​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

sin(πcosθ)=cos(πsinθ)

⇒cos(π2−πcosθ)=cos(πsinθ)

⇒π2−πcosθ−±πsinθ

⇒π2=πcosθ±πsinθ

12=cosθ±sinθ

Squaring both sides, we get

14=cos2θ+sin2θ±2sinθcosθ

⇒14=1±2sinθcosθ

⇒14−1±sin2θ

⇒−34=±sin2θ⇒sin2θ±34