Fundamental Trig Identities

Front

What is the reciprocal function of cos(x)?

Back

sec(x)

Front

Fill in the blank: tan(x) = ____ / cos(x)

Back

sin(x)

Front

What is the reciprocal function of tan(x)?

Back

cot(x)

Front

What is the reciprocal function of sec(x)?

Back

cos(x)

Front

What is the reciprocal function of sin(x)?

Back

csc(x)

Front

Define the term 'reciprocal function' in trigonometry.

Back

A reciprocal function is a function that is the multiplicative inverse of another function.

Front

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

Back

csc(x) = 1/sin(x)

Front

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

Back

sec(x) = 1/cos(x)

Front

What is the relationship between tan(x) and cot(x)?

Back

cot(x) = 1/tan(x)

Front

What is the Pythagorean identity involving sin(x) and cos(x)?

Back

sin²(x) + cos²(x) = 1