Fundamental Trig Identities Review

Front

What is the Pythagorean identity for sine and cosine?

Back

sin²x + cos²x = 1

Front

What is the relationship between secant and cosine?

Back

sec x = 1/cos x

Front

What is the relationship between tangent and sine/cosine?

Back

tan x = sin x / cos x

Front

What is the identity for tangent squared in terms of secant?

Back

tan²x + 1 = sec²x

Front

What is the identity for cotangent squared in terms of cosecant?

Back

cot²x + 1 = csc²x

Front

What is the value of tan²θ - sec²θ?

Back

-1

Front

Is cot²θ + csc²θ equal to 1?

Back

False

Front

What is the reciprocal identity for sine?

Back

csc x = 1/sin x

Front

What is the reciprocal identity for cosine?

Back

sec x = 1/cos x

Front

What is the reciprocal identity for tangent?

Back

cot x = 1/tan x