Question

Find the value of 0 in following:
(i) 2 cos 30 = 1
(ii) tan 50 = 1​

Answer 1

Answer:

20° and 9° respectively

Step-by-step explanation:

Let theta=x here

Then, 2cos3x=1

cos3x=1/2

3x=60°

x=20°

tan5x=1

5x=45°

x=9°