Question

if cos 3 theta is equal to root 3 by 2 and 0 <theta<20 find value of theta​

Answer 1

Answer:

Step-by-step explanation:

cos 3 theta = root 3/2

cos 30 = root 3/2

3 theta = 30 degrees

then theta = 10 degrees

Answer 2

Answer: 10 degrees

pls refer my attachment:

hope it helps.......