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  1. D

    Please help with this first order non linear DE!

    Homework Statement (8x^2y^3-2y^4)dx+(5x^3y^2-8xy^3)dy=0 Homework Equations The Attempt at a Solution I've already tried the most logical steps. The equation isn't exact and I couldn't find an integrating factor to make it exact. It's also not homogeneous or separable. I have to be making...
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    Programs Kinda stressed over a major to pick

    So I have a slight dilemma. I'm a senior in high school right now and I absolutely love math and physics. When I go to college, I don't know whether I should major in math, engineering, or physics . I'll assume that you guys would usually tell someone in my position to not worry about it because...
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    Integral by Trig Substitution, Calc 2

    Homework Statement The definite integral of ∫(x^2 √(a^2-x^2) dx from 0 to a Homework Equations The Attempt at a Solution So i don't need actual help with this problem. I got the answer, (π*a^4)/16 and I verified with the back of the book. The question I have is whether this...
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