Use your calculator to find sin theta and cos theta if the p

Use your calculator to find sin theta and cos theta if the point (9.36, 7.09) is on the terminal side of theta. (Round your answers to four decimal places.)

Solution

(9.36 , 7.09)

hypotenuse of right angled traingle made by x , y coordinates:

hypotenuse = sqrt(9.36^2 + 7.09^2) = 11.74

sin(theta) = 7.09/11.74 = 0.6039

cos(theta) = 9.36/11.74 = 0.7973