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Use the substitution x=7tan( θ) to evaluate the indefinite integral?

+1 vote

Integral(21dx/((x^2 * sqrt(x^2+49))

indefinite-integral

asked May 11, 2013 in CALCULUS by abstain12 Apprentice

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2 Answers

0 votes

By using Substitution method

and

Apply pythagorean identity

answered Jul 21, 2014 by david Expert

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0 votes

Continuous ...

Substitute in equation (1).

answered Jul 21, 2014 by david Expert

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