Trig Identities

Front

What is the Pythagorean identity in trigonometry?

Back

sin²(x) + cos²(x) = 1

Front

What is the value of cos²(x) + sin²(x)?

Back

1

Front

How can you express tan(x) in terms of sin(x) and cos(x)?

Back

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

Front

What is the relationship between sec(x) and cos(x)?

Back

sec(x) = 1/cos(x)

Front

What is the relationship between csc(x) and sin(x)?

Back

csc(x) = 1/sin(x)

Front

What is the value of tan(x) when sin(x) = 0 and cos(x) = 1?

Back

0

Front

What is the value of tan(x) when sin(x) = 1 and cos(x) = 0?

Back

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Front

What is the reciprocal identity for cotangent?

Back

cot(x) = 1/tan(x)

Front

What is the value of sin(90°)?

Back

1

Front

What is the value of cos(0°)?

Back

1