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

Question

2275 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-04-11T00:30:21

Try using the fact that #sqrt(a)*sqrt(b)=sqrt(a*b)# to get:
enter image source here