Question

0:

Select all angles that are coterminal with the angle 3π4 .
A −3π4
B 11π4
C −5π4
D π4
E 7π4

Answer 1

Answer:(b), (c)

Explanation:

Given angle is
`=(3\pi )/(4)`

Coterminal angles are those which shares same staring side and terminating side

The coterminal of given angle is

`\Rightarrow (3\pi )/(4)+2\pi =(11\pi )/(4)`

Negative coterminal angle

`\Rightarrow (3\pi )/(4)-2\pi`

`\Rightarrow -(5\pi )/(4)`

Thus option (b) and (c) are correct