G grapz Junior Member Joined Jan 13, 2007 Messages 80 Mar 1, 2008 #1 Can someone show me how to do this (1+x)^1/2 * (1-x)^1/2 The answer given in the book is (1 - x^2)^1/2

Can someone show me how to do this (1+x)^1/2 * (1-x)^1/2 The answer given in the book is (1 - x^2)^1/2

L Loren Senior Member Joined Aug 28, 2007 Messages 1,299 Mar 1, 2008 #2 Re: Rational multiplication (1+x)^1/2 * (1-x)^1/2 \(\displaystyle (1+x)^{1/2} * (1-x)^{1/2}\) Use the rule--- \(\displaystyle a^x\cdot b^x = (ab)^x\)

Re: Rational multiplication (1+x)^1/2 * (1-x)^1/2 \(\displaystyle (1+x)^{1/2} * (1-x)^{1/2}\) Use the rule--- \(\displaystyle a^x\cdot b^x = (ab)^x\)