Integrate 1/(x(x^2+1)) dx using trig

Integrate 1/(x(x^2+1)) dxusing trig substitution
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2. asked by ANON
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Please can anyone help with the following problems - thanks.1) Integrate X^4 e^x dx 2) Integrate Cos^5(x) dx 3) Integrate
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2. asked by Febby
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integrate 1/(x^2sqrt(1+x^2))i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated
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2. asked by kevin
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Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but
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2. asked by Elaine
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Integrate x/(x^2 + 4) dx via trig substitution and by u=x^2+4 substitution. Show that results are equal.Via trig substitution of
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2. asked by mathstudent
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Please do help solve the followings1) Integrate e^4 dx 2) Integrate dx/sqrt(90^2-4x^2) 3) Integrate (e^x+x)^2(e^x+1) dx 4)
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2. asked by Febby-1
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1. what trig function has an amplitue of 1 and negative values for angles between π/2 and π?2. what trig function never
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2. asked by anon
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could someone please refresh my memory of the basic trig functions?ex) cos^2 + sin^2 = 1? That is a trig identity.
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2. asked by raychael
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6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b = 1/2with ?1/(1+t) dt with a = 0, b = 1, and repeat the
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2. asked by Rajeev
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1) Integrate Cos^n(x) dx2) Integrate e^(ax)Sinbx dx 3) Integrate (5xCos3x) dx I Will be happy to critique your thinking on
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2. asked by Febby
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