Thread: Trigonometric Functions

Let t = theta for short

(1) If cot(t) = -2, find cot(t + pi)

(2) If cos(t) = 2/3, find sec(t)

Hello,

I think that...
cot(t)=1/tan(t),
tan(t+pi)=tan t,
sec(t)=1/cos(t).

Bye.

Originally Posted by magentarita

Let t = theta for short

(1) If cot(t) = -2, find cot(t + pi)

(2) If cos(t) = 2/3, find sec(t)

Use the following rules:

Thanks Air.