Question

Angle is in standard position, if sin(0) = -1, and A<$< 3,4, find cos(O).
Why?

Answer 1

0

Explanation:

Sin(theta) = -1

Theta = 270° or 3pi/2

Cos(theta) = 0

Reason:

sin²(0) + cos²(0) = 1

(-1)² + cos²(0) = 1

cos²(0) = 0

cos(0) = 0

Answer 2

please explain what this is supposed to mean A<$< 3,4,

Explanation: