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If f (a) = 4x sin -1 (a), find f' (x) = f' (0.4) = Note: Don't try to use sin (a) in your answers; use arcsin (x) insteadFind the derivative of the function f(x) = 2x arccos(2x - 1 - 4x2 f' (x) =If f(a) = 8 sin(7x)sin -1(x), f' (x) =If f(x) = 5 arctan (6x), find f' (x). Find f'(2).Let f(x) = (4 sin x + 3 cos x) arctan x f' (x) =Given at) = sin103), find the equation of the line tangent to x) at a: = 7 Round your values to two decimal places. m A small plane, moving at 100 , flies horizontally on a line 500 meters directly above an observer. .9 Let 3 be the angle of elevation between the plane and the observer and let a: be the horizontal distance between the plane and the observer. Find an equation for 6 in terms of a: and the arctangent function. 9(3). :] Find an equation for: or 6'( W [:] What is the rate of change of the angle of elevation, , when the plane is a: = 220 meters past the E observer? Round your answer to 5 decimal places if necessary. New: o\