PreCalc Trig Identities Review

Front

Rewrite tan(x) in terms of sin(x) and cos(x).

Back

tan(x) = \frac{sin(x)}{cos(x)}

Tags

CCSS.HSF.TF.C.8

Front

What is the identity for \sec^2x - 1?

Back

\sec^2x - 1 = \tan^2x

Front

What is the value of the expression 2sin(30°)cos(30°)?

Back

2sin(30°)cos(30°) = sin(60°)

Tags

CCSS.HSF.TF.C.9

Front

What is the result of sin(x)·sec(x)?

Back

sin(x)·sec(x) = tan(x)

Front

What is the simplified form of \sec x - \sec x sin^2x?

Back

\sec x - \sec x sin^2x = cos(x)