Trig Id FLASHCARD

Front

What is the definition of csc(x)?

Back

csc(x) = 1/sin(x)

Front

What is the relationship between cotangent and sine/cosine?

Back

cot(θ) = cos(θ)/sin(θ)

Front

Simplify: sin(x) cot(x)

Back

cos(x)

Front

What is the Pythagorean identity involving sin and cos?

Back

sin²(x) + cos²(x) = 1

Front

What is the definition of sec(x)?

Back

sec(x) = 1/cos(x)

Front

What is the definition of tan(x)?

Back

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

Front

Simplify: cos(x) - cos(x)sin²(x)

Back

cos³(x)

Front

What is the relationship between secant and tangent?

Back

sec²(x) = 1 + tan²(x) (Pythagorean identity)

Front

What is the definition of sin(x)?

Back

sin(x) = opposite/hypotenuse in a right triangle.

Front

What is the definition of cos(x)?

Back

cos(x) = adjacent/hypotenuse in a right triangle.