EdTheHead
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I ran into this problem here
[math]\int {1}{x^2 + 7x + 10}dx[/math]
and the only way I can think of to solve this kinda thing is to do a substitution and get [math]u^-1[/math] but in this case I have no idea how to turn the substitute in the du. Is this a trig substitution problem?
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Ah right. Thanks.
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My main problem is I don't know why they give me the info "y0 > 0, k >0". I can isolate t and get t = ln0.5 / -k but I'm assuming they give me that extra info so I can figure out what k is in order to fully solve for t.
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Solve for t: y0e-kt = y0 / 2 y0 > 0, k >0
I have no idea how to approach this problem. I don't even know what category this falls under so I'm having trouble googling info this type of problem.
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When and where to apply u substitution
in Analysis and Calculus
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Sorry yeah thats what I meant. Ah right I didn't think of partial fractions thanks.