√8a^8=?
\[\sqrt{8a^8}\]?
when you have two of the same terms within your square root you can take out so split up your function inside the square rot \[8a^8=2*2*2*a^4*a^4\]
take out anythng with 2 same terms and leave the rest in the square root. You have two 2's and two a^4 with a remaining 2
√8a^8 = 8a^ 2/8 = 8a^1/4 which is fourth root of 8a
@Aditi_Singh that is wrong as if you are to change that into that form it'd be \[8^{\frac{1}{2}}a^{\frac{2}{8}}\]
if it was your way it'd have to be \[\sqrt{(8a)^8}\]
I still dont get you @Outkast3r09 :( :/
so right now we have sqrt(8*a^8) = (8*a^8)^(1/2) and now we are going to use the properties of exponents where (ab)^m =(a^m)*(b^m) so in this case we got (8^1/2)*(a^8/2) = (8^1/2)*(a^4) now we know 8=4*2 so let us replace with that as well and simplify a little more to get ((4*2)^1/2)*(a^4) and now let us use that property again to get (4^1/2)(2^1/2)(a^4) = 2sqrt(2)*a^4 :)
@Aditi_Singh , What hamza did is how'd you'd have to do it , if you wanted to go about doing the problem like that the answer is not 4th root of 8a it's \[2a^4\sqrt{2}\]
Argh!! .. That was so stupid of me.. not to understand what he meant about the problem!!.. Humph!! x(
Btw, yes, i do understand what was the question .. and indeed you are right .. @Outkast3r09 .. :) :P
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