McLain Trig. Identities

Front

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

Back

tan(x) = sin(x)/cos(x)

Front

Solve for tan²θ: 1 + tan²θ = sec²θ.

Back

tan²θ = sec²θ - 1

Front

What is cos x equivalent to?

Back

cos x = 1/sec x

Front

What is sec x equivalent to?

Back

sec x = 1/cos x

Front

What is csc(x) equivalent to?

Back

csc(x) = 1/sin(x)

Front

What is the Pythagorean identity involving sin and cos?

Back

sin²(x) + cos²(x) = 1

Front

What is the relationship between cotangent and tangent?

Back

cot(x) = 1/tan(x) or tan(x) = 1/cot(x)

Front

Express sin²(x) in terms of cos(x).

Back

sin²(x) = 1 - cos²(x)

Front

Express cos²(x) in terms of sin(x).

Back

cos²(x) = 1 - sin²(x)

Front

What is the definition of secant?

Back

sec(x) = 1/cos(x)