Question

Is this an identity?

Answer 1

\[\frac{ \sqrt{3}+1 }{ 2 }\]

Answer 2

sorry hold on

Answer 3

\[\cos x + \sin x = \frac{ \sqrt{3}+1 }{ 2 }\]

Answer 4

i believe, but not exactly sure

Answer 5

Only in a 30 60 90 triangle

Answer 6

? so is it? all they gave me was the question and a true or false option.

Answer 7

its not a triangle so no