Cos (0) = square root 2/2 and 3pi/2<0<2 pi , evaluate sin(0) and tan (0)

and

Step-by-step explanation:

Given : and

To find : Evaluate and ?

Solution :

As means belong to the third or fourth quadrant .

So,   is negative and is positive in third and negative in fourth.

Using the formula of trigonometric,

Substitute   ,

Now using another formula,

Therefore, and .