Question

simplify Radical help !

Answer 1

Simplify: \[\sqrt{a ^{2}}\]

Answer 2

There are several ways to do this:

Re-writing this with the fractional exponent 1/2 results in\[\sqrt{a^2}=(a ^{\frac{ 1 }{ 2 }})^{\frac{ 2 }{ 1 }}=a^1=a\]

Since finding the square root of a^2 effectively finds the absolute value of a, remember that \[\sqrt{a^2}=|a|\]

Answer 3

@mathmale could you help me with a couple more ?

Answer 4

One or two, sure. Please post your additional problems separately (not here).