Question

for theta =30° find sin2theta=2sinthetacostheta​

Answer 1

Step-by-step explanation:

LHS

sin2 30

=sin60

=√3/2

RHS

2sin 30cos 30

=2×1/2 ×√3/2

=√3/2

HENCE PROVED......

PLZZZZ MARK THE ANSWER AS BRAINLIEST.......

Answer 2

Step-by-step explanation:

first consider LHS

sin2∅

by placing 30° in the place of ∅

we get sin2∅ = sin2(30°) = sin60°

sin 60° = √3/2

now consider RHS

2sin∅cos∅

by placing 30° in the place of ∅

we get 2×sin30°×cos30°

2×1/2×√3/2

2,1/2 cancel out

remaining √3/2

∴LHS=RHS

HENCE PROVED