How do you simplify $sqrt(r^2 + x^2)*sqrt(1+(x^2/(r^2 +x^2)$ ?

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Answer 1 · 2015-04-11T00:30:21

Try using the fact that $sqrt(a)*sqrt(b)=sqrt(a*b)$ to get:
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How do you simplify sqrt(r^2 + x^2)*sqrt(1+(x^2/(r^2 +x^2)sqrt(r^2 + x^2)*sqrt(1+(x^2/(r^2 +x^2)?