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LifeIsADangerousGame
 one year ago
Can anyone give me an explanation for this?
http://cdn2.hubspot.net/hub/360031/hubfs/body_arithmetic1.jpg?t=1439394385622&width=504
LifeIsADangerousGame
 one year ago
Can anyone give me an explanation for this? http://cdn2.hubspot.net/hub/360031/hubfs/body_arithmetic1.jpg?t=1439394385622&width=504

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(n^2\ge 1\tag{1}\) \(\implies n \ge 1\) \( \implies n^2\ge n\tag{2}\) adding both equations yields \(n^2+n^2\ge 1+n\) \(\implies 2n^2n\ge 1\)

LifeIsADangerousGame
 one year ago
Best ResponseYou've already chosen the best response.1Would testing each answer out work as well? I tried, but it didn't work out for me. Memorizing isn't my strong point, so I'm trying to figure out other methods.

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1i would do that.^^^^ :P

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1i'll pick a number for n let n=6 \[2(6)^3+(6)=2(216)6=438\] so \[\ \cancel{E}\] \[(6)^3 +(6) = 2166 =222\] D isn't correct \[\ \cancel{D}\] \[(6)^2+(6)^3 = 36216=180\] \[\ \cancel{C}\] now there are 2 possible options hmmm\[\rm 2(6)^2(6) ~and~(6)^26\]

LifeIsADangerousGame
 one year ago
Best ResponseYou've already chosen the best response.1they both end up positive?

LifeIsADangerousGame
 one year ago
Best ResponseYou've already chosen the best response.1so how do I know which one is correct?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1\[\rm 2(6)^2(6) ~and~(6)^26\] \[2(36)\color{reD}{+}6 ~~~~~~~~~~~~~~~~~~~ 36\color{reD}{}6\] hmmm i guess ^^addition ^subtraction different signs hmm LOL sometimes i use my own method *sigh*

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.1anyway i'll work on this later i'm sleepy rn....

LifeIsADangerousGame
 one year ago
Best ResponseYou've already chosen the best response.1oh okay, thanks for your help!
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