Question

i need to solve
\[\cos \left( \frac{ \pi }{ 6 }+x \right)-\cos \left( \frac{ \pi }{ 6 }-x \right)=1\]

Answer 1

Might help to use some trig identities. Give me a second.

Answer 2

\[
\cos(x+y) = \cos(x)\cos(y) - \sin(x)\sin(y) \\
\]

Answer 3

In which case you would treat \(x = \pi / 6\) and \(y = x\), etc.

Answer 4

Forgive me for reusing that \(x\) variable.

Answer 5

lol You are forgiven :)

Answer 6

cos(x-y)=Cos(x)Cos(y)+Sin(x)Sin(y)

Answer 7

thanks. i got it

Answer 8

What was your answer for x?

Answer 9

\[\frac{ 3\pi }{ 2 }\]

Answer 10

Ya got that too :)

Answer 11

good. yeah!