Trigonometric Functions

Trigonometric Functions

We denote and define trigonometric functions as follows.

Function

Domain

Range

Y=Sinx

R

-1  ≤ Y ≤  1

Y=Cosx

R

-1 ≤  Y ≤  1

Y=Tanx

{x: x ∈ R and x ≠(2n+1) \frac{\pi}{2}}

R

Y=Cotx

{x: x ∈ R and x ≠n\pi }

R

Y=Secx

{x: x∈ R and x≠(2n+1) \frac{\pi}{2} }

y ≥1,  y ≤  -1

Y=Cosecx

{x: x∈R and x≠n\pi }

y ≥1,  y ≤ -1

 

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