Combine rules to differentiate the following functions. (a) y = Inx = (lnx) By the generalized power

Combine rules to differentiate the following functions.

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(a) y = Inx = (lnx) By the generalized power function rule, (b) y = In 4x = (In 4x)2 y' = = 2(lnx) ( 2 ln x = x By the generalized power function rule again, 6 In 4x y' = 2(In 4x) (12x) = 4.x3 x (c) y = In (21x+8)= [In(21x+8)] y=2[In(21x+8)] 21x+8 21.14) 42 In(21x+8) (21) = 21x+8 (d) y In(9x+4)2 [In(9x+4)]