What?

Geometry Level 4

Find the value of n n satisfying n 1 / 2 = tan ⁡ ( 3 π 11 ) + 4 sin ⁡ ( 2 π 11 ) n^{1/2} = \tan \left( \dfrac{3\pi}{11} \right) + 4\sin \left( \dfrac{2\pi}{11} \right) .


The answer is 11.

Shubham Sarwade by Shubham Sarwade , 25, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Shubham Sarwade
May 16, 2016

Relevant wiki: Sum to Product Trigonometric Identities

The answer is square root of 11. Can be easily solved using trigonometric transformations on the expressions.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Can you please write the entire solution?

Saurabh Mallik - 4 years, 10 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...