Waste less time on Facebook — follow Brilliant.
×

Help in TRIGONOMETRY!!!

please solve this

Note by Ashley Shamidha
2 years, 6 months ago

No vote yet
1 vote

Comments

Sort by:

Top Newest

Write \(\sin^2 x = \frac {1}{2} (1-\cos 2x)\). You will get an A.P in angles during summation.Just apply the formula.

Akshay Bodhare - 2 years, 6 months ago

Log in to reply

The answer is 19/2, but please tell me how.

Ashley Shamidha - 2 years, 6 months ago

Log in to reply

×

Problem Loading...

Note Loading...

Set Loading...