Please answer all the questions:

2 of 4 Find the derivative of y with respect to a of y = tan-1 (a + 1). Item 1 (1 point) Item 2 Item 3 Item 4 O a2+20+2 O 02+ 20+1 O O Next3 of 4 Item 1 Find f' (h) if f (h) = sec-1 ( 7). (1 point) Item 2 Item 3 of (h) = - Item 4 Of (h) = Thy(h 2) 2 Of' (h) = 2 of' (h) = O f' (h) = Next4 of 4 Find the equation of the line tangent to the graph of y = cot-1 (2x) at = = 3 Item 1 (1 point) Item 2 Oy= -Ja+ Item 3 O y= 32+ #2 Item 4 Oy=of Oy= -It +2 Review