I have no idea where to go on this one: using substitution t = sinx evaluate the following integral within the limits pi/2 to pi/6: 4cosx /(3 + (cosx)^2 dx i thought about using t^2 = s(inx)^2 but get in a right mess! Can you help? Thanks D
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Originally Posted by dojo I have no idea where to go on this one: using substitution t = sinx evaluate the following integral within the limits pi/2 to pi/6: 4cosx /(3 + (cosx)^2 dx i thought about using t^2 = s(inx)^2 but get in a right mess! Can you help? Thanks D Send your question again and this time be careful with the parentheses! Tonio
Hello, dojo! We have: . Let: . Substitute: . Apply Partial Fractions and get: . . . . . . . Back-substitute: .
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