Question

find the value of theta 2 cos 3theta =1​

Answer 1

Step-by-step explanation:

2cos3θ=1

cos3θ=1/2

cos3θ=cos60°

3θ=60°

θ=60°/3=20°

Answer 2

$[tex]\huge\mathbb\red{Answer:-}$[/tex]

2 cos 3 theta = 1

=>cos 3 theta =$\frac{1}{2}$

=>cos 60 =$\frac{1}{2}$

=>3 theta =60

=>theta =$\frac{60}{3}$

=>theta =20