Question

sin2 θ=2 sin θ सत्य है यदि θ का मान ?

Answer 1

sin2∅ = 2sin∅

=> 2 sin∅ cos∅ = 2sin∅

=> cos∅ = 1

=> cos∅ = cos 0⁰

=> ∅ = 0⁰

Answer 2

$theta = 30 \: degree$