Trigonometric Functions | MATH 1113 - PRECALCULUS, Quizzes of Pre-Calculus

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TERM 1

sin(theta)

DEFINITION 1

y/r

TERM 2

cos(theta)

DEFINITION 2

x/r

TERM 3

tan(theta)

DEFINITION 3

y/x

TERM 4

csc(theta)

DEFINITION 4

r/y = 1/sin(theta)

TERM 5

sec(theta)

DEFINITION 5

r/x = 1/cos(theta)

TERM 6

cot(theta)

DEFINITION 6

x/y = 1/tan(theta)

TERM 7

Pythagorean

Identities

DEFINITION 7

sin^2(theta) + cos^2(theta)= 1tan^2(theta) + 1 =

sec^2(theta)1 + cot^2(theta) = csc^2(theta)

TERM 8

Quotient

Identities

DEFINITION 8

sin(theta)/cos(theta) =tan(theta)cos(theta)/sin(theta) =

cot(theta)