Question

Which point on the unit circle corresponds to −π ?

Answer 1

On the unit circle:
( 1, 0 ) corresponds to 0.
( 0, 1 ) corresponds to π/2
( -1, 0 ) corresponds to π
( 0, - 1 ) corresponds to 3π/2
- π = π
Answer:
D ) ( - 1 , 0 )

Answer 2

Answer:

$(-1,0)$

Step-by-step explanation:

we know that

In the unit circle

The point $(1,0)$ correspond to $0$

The point $(0,1)$ correspond to $\pi/2$ or  $-3\pi/2$

The point $(-1,0)$ correspond to $\pi$ or $-\pi$

The point $(0,-1)$ correspond to $3\pi/2$ or  $-\pi/2$

therefore

$-\pi$ -----> correspond to the point $(-1,0)$