Question

Answer this plz...
.
.
.
​

Answer 1

Answer:

$\huge\frak\red{Answer}$

11. i)

We have, 2 sin 2 θ = √3

sin 2 θ = √3/2

sin 2 θ = sin 60°

2 θ = 60°

θ= 60°/2

θ = 30°

ii) (i) 2cos3θ=1

⇒cos3θ=21

⇒cos3θ=cos60

Therefore, 3θ=60

⇒θ=20

iii)

sorry dear Friend I can't help more

Only ask one Question in Question...!!