- #1
delapcsoncruz
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Homework Statement
∫ (x+2)dx/√(4x-x2)
Homework Equations
why was the -2 in -2(x-2) was ignored?
The Attempt at a Solution
so first i let u= 4x-x2
then, du=4-2x
= -2(x-2)
so to get (x+2) i equate it to (x-2)+4
so ...
∫ (x+2)dx/√(4x-x2) = ∫(x-2)+4dx/√(4x-x2)
= ∫ (x-2)dx/√(4x-x2) + ∫4dx/√(4x-x2)is the solution right?
and why was the -2 in -2(x-2) was ignored?
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