Question

Evaluate and simplify tan 15º.

Answer 1

http://openstudy.com/study#/updates/51687d0ce4b0344769c97f2b

Answer 2

Do not duplicate the question..

Answer 3

15 = 45-30
so,
\[\tan(15^\circ)=\tan(45^\circ-30^\circ)\]
you can you the tan (A-B) expansion.

Answer 4

You are just writing the answer part..

Why you are not writing the solution and calculation part so that we can check where are you doing wrong..??

Answer 5

2+qrt3 is that correct

Answer 6

I am again saying you that write the proper solution..

Answer 7

well i dont know how to do the problem ):

Answer 8

Then you are guessing the answers??

Answer 9

im using the answers from the multiple choice

Answer 10

Let me show you properly:
\[\tan(45 - 30) = \frac{\tan(45) - \tan(30)}{1 + \tan(45)\tan(30)}\]
\[\implies \frac{1 - \frac{1}{\sqrt{3}}}{1 + 1 \cdot \frac{1}{\sqrt{3}}}\]
Can you solve this?

Answer 11

Just guessing the answer will not help you buddy..

Answer 12

my answer still isnt coming out right

Answer 13

I DONT KNOW WHAT IM DOING WRONG