Question

Identify the terminal point for a 45° angle in a unit circle.

O A (231)
O B.
O c.
V2 72

Answer 1

D

Explanation:

x- coordinate = cos45° =
`(1)/(√(2) )` =
`(√(2) )/(2)`

y- coordinate = sin45° =
`(1)/(√(2) )` =
`(√(2) )/(2)`

That is (
`(√(2) )/(2)` ,
`(√(2) )/(2)` ) → D