Integrate the functions.


Let x + 2 =

x + 2 = A(2x) + B


Now, equating the coefficients of x and constant term on both sides, we get,


2A = 1


A =


B = 2


x + 2 = (2x) + 2




Now,


Let x2 - 1 = t


(2x)dx = dt




And



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