Evaluate the following integrals:


Given


Integral is of form


Writing numerator as


px + q = λ(2ax + b) + μ


x = λ (2x + 6) + μ


λ = 1/2 and μ = -3


Let x = 1/2(2x + 6) – 3 and split,




Consider


Let




We know that




Consider



Let u = x + 3 dx = du



We know that




Then,





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