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I just want to clear up something to do with factorising indices. Can someone just spend a little time for me :)
 one year ago
 one year ago
I just want to clear up something to do with factorising indices. Can someone just spend a little time for me :)
 one year ago
 one year ago

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TeemoTheTerificBest ResponseYou've already chosen the best response.0
Which term would you factor out? Because you can take out 2^2n or 2^n1. Which one should you take out? Or its just random \[\huge\frac{2^{2n}2^{n1} }{ 2^{n}2^{1} }\]
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
for the numerator it would be \[\huge2^{2n}(1  2^{n1})\] Would it?
 one year ago

wioBest ResponseYou've already chosen the best response.3
What if you factor out just \(2^n\)
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
well ill try dw:1359854348941:dw this is right?
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
dw:1359854381094:dw
 one year ago

wioBest ResponseYou've already chosen the best response.3
\[ \huge\frac{2^{2n}2^{n1} }{ 2^{n}2^{1} } \] \[ \huge\frac{2^n(2^{n}2^{1} )}{ 2^{n}2^{1} } \]
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
oh yes thats right :)
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
so how did you know to factor out 2^n? You just looked at it?
 one year ago

wioBest ResponseYou've already chosen the best response.3
I wanted something similar to the bottom.
 one year ago

TeemoTheTerificBest ResponseYou've already chosen the best response.0
so you keep thinking of a number to factor out till you can simplify?
 one year ago

KuoministersBest ResponseYou've already chosen the best response.0
you should be able to think a good number to factor out when you have experience :)
 one year ago
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