类别 全部 - period - identities - functions - trigonometry

作者:Julia Pham 6 年以前

166

6 Trig Functions

The text provides detailed information about various trigonometric functions, including tangent, secant, cosecant, cosine, sine, and cotangent. It outlines the domain and range for each function and their respective inverses.

6 Trig Functions

Fundamental Identities

tan^2θ+1=sec^2θ

1+cot^2θ=csc^2θ

sin^2θ+cos^2θ= 1

Trig Functions

COTθ

y=cot^-1θ
D: (−∞,∞)

R:(0,π)

y=cotθ
D: All real except nπ

TANθ

y=tan^-1θ
D: (−∞ ∞,)

R:( (-π/2)/(π/2))

y=tanθ
D: All Reals except (π/2)+nπ

R: All Real #s

Per: π

SECθ

y=sec^-1θ
D: (−∞ −, 1]∪[1,∞)

R: [0,π], y≠(π/2)

y=secθ
D: All real except (π/2)+(nπ)

R: (−∞,−1]∪[1,∞)

COSθ

y=cos^-1θ

R: [0,π]

y=cosθ
D: All Real #s

R: [-1,1]

CSCθ

y=csc^-1θ
D: (- ∞, -1]U[1, ∞ )

R: [(-π/2)/(π/2)], y≠0

y=cscθ
D: All Reals except nπ

R: (- ∞, -1]U[1, ∞ )

Per: 2π

Odd

SINθ

y=Sin^-1θ
D: [-1,1]

R: [(-π/2)/(π/2)]

y=sinθ
Domain: All Real #s

Range: [-1,1]

Period: 2π

Even