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| Math Central | Quandaries & Queries |
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Question from Rubén, a teacher: I have the ecuation: U = [yb / (ab+a^2)]^1/2 + [ya / (ab+b^2)]^1/2 I know for sure this reduces to U = [y (1/a + 1/b)]^1/2 but I cannot find a way to get into that result! Thanks |
Rubén wrote back that he solved this problem and sent us his solution. It is a nice exercise in manipulating algebraic expressions so I have posted his solution for others to see. Her is what Rubén sent us
Harley
I have solved the problem!!!
Squared and root:
then
Considering (a+b)/ab = (1/a + 1/b)...
Rubén
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