The terminal side of θ passes through the point (−9,10). What is the exact value of sinθ in simplified form?

A. −9√181/181

B. 9√181/181

C. 10√181/181

D. −10√181/181

Guest Nov 14, 2019

#1**+1 **

Calculate the hypotenuse of the right triangle formed by negative x axis and the point and the origin

hyp^2 = (-9)^2 + 10^2 = 181

hyp = sqrt (181)

Sin = opp/hyp (use reference angle that is negative x axis and the hypotenuse)

10/sqrt181 or 10 sqrt181 / 181

ElectricPavlov Nov 14, 2019