Hello I can't seem to get the answer please help with both parts!

(15%) Problem 4: The upper leg muscle (quadriceps) exerts a force of Fo = 1360 N, which is carried by a tendon over the kneecap (the patella) at the angles shown in the figure. F 550 P 750 Fo Otheexpertta.com $ 50% Part (a) Find the magnitude of the force, in newtons, exerted by the kneecap on the upper leg bone (the femur) at the point P. Grade Summary F = N Deductions 5% Potential 95% sin() cosO tan( 7 8 9 HOME Submissions asino Attempts remaining: 3 cotan() acos A 4 5 6 (5% per attempt) atan( acotan() sinh 2 3 detailed view 5% cosh( tanh() cotanh() + END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 3% deduction per hint. Hints remaining: 2 Feedback: 2% deduction per feedback. 4 50% Part (b) What angle does the force from the kneecap act at, in degrees measured counterclockwise from the positive x-direction shown in the figure