two questions thanks

Find the antiderivatives of (x + cos x). Select one: a . x 2 2 + cos x + C Ob. x2 - sin x + C 2 O C. x 2 + sin x +. C Od. x+1 2 +. sin x + C Find dy/dx in terms of x and y of x2 y' = 2x - y. Select one: o a. 2 - 2xy3 y = 3x212 - 1 O b. 2+ 2xy3 Y = 3x212 + 1 O C . -2 -2x13 y = 3x2 12 + 1 o d. 2 - 2xy3 V = 3x2 12 + 1