Question

Angle Theta has a terminal side located in quadrant 4 of the coordinate plane and sign of data equals negative 8 / 17 what is cosine of theta

Answer 1

`\begin{gathered} \sin (\theta)=(-8)/(17) \\ \theta=\sin ^(-1)(-8)/(17) \\ \theta=-28 \\ As\text{ negative angle} \\ \theta=360+(-28) \\ \theta=332 \\ \cos (332)=(15)/(17) \\ \text{The }\cos (332)is(15)/(17) \end{gathered}`