1) int sqrt(9+8x-x^2) - Wolfram|Alpha
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2) int 1/(sqrt(x^2-8x+41)) - Wolfram|Alpha
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I have 3 problems which I can't really wrap my head around. I guess the ones I've been doing so far were much more literal. I was wondering if someone could help me out
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3. A charged rod of length L produces an electric field at point P(a,b) given by the integral below, where λ is the charge density per unit length on the rod and ε0 is the free space permittivity (see the figure) and b ≠ 0. Evaluate the integral to determine an expression for the electric field E(P). (Use lambda for λ and Emf_0 for ε0.)
1) int sqrt(9+8x-x^2) - Wolfram|Alpha
click show steps
2) int 1/(sqrt(x^2-8x+41)) - Wolfram|Alpha
click show steps
id help out but after trying the first one and seeing how many steps it'd take, and noticing that i still didnt match wolfram...very close to it though (so many steps!), makes me have to pass. i got quite far using integration by parts so that if is equal to your first intergral, set f(x)=1, and take its antiderivative in the I.B.P framework. very ugly and pointless integrals.