Question: 9 sin x Let f(a) 2 sin x + 4 cos x 9 Then f' (ac) = (sin ( a ) + 2 cos(a) )

9 sin x Let f(a) 2 sin x + 4 cos x 9 Then f' (ac) = (sin ( a ) + 2 cos(a) ) 2 The equation of the tangent line to y = f(x) at a = 0 can be written in the form y = ma + b where m = and b =

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