Integral of (32/((x^2)(sqrt(16-(x^2)))))dx

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SUMMARY

The integral of the function (32/((x^2)(sqrt(16-(x^2)))))dx can be simplified using the substitution x = 4sin(w), leading to the differential dx = 4cos(w) and transforming the integral into 2*int(1/(sin^2(w)))dw. This further simplifies to 2*int(cosec²(w))dw, which is a standard integral. The final result of the integral can be derived using the known antiderivative of cosec²(w).

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Problem Statment:
Int (32/((x^2)(sqrt(16-(x^2)))))dx

Problem Attempt:
a = 4 x = 4sin(w) w = theta
dx = 4cos(w)

Worked the problem down to:
2*int(1/(sin^2(w)))dw
 
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RUStudent said:
Problem Statment:
Int (32/((x^2)(sqrt(16-(x^2)))))dx

Problem Attempt:
a = 4 x = 4sin(w) w = theta
dx = 4cos(w)

Worked the problem down to:
2*int(1/(sin^2(w)))dw

Hi RUStudent! :smile:

(have an integral: ∫ and a square-root: √ and a squared: ² :smile:)

erm … how about 1/sin²w = cosec²w? :redface:
 

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