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anonymous
 one year ago
PLZ HELP NO DIRECT ANSWERS...will medal+fan.
Which is equivalent to the expression shown when a>0 and b>0?
anonymous
 one year ago
PLZ HELP NO DIRECT ANSWERS...will medal+fan. Which is equivalent to the expression shown when a>0 and b>0?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440439527592:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440439634803:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i dont understand this

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0ok :) so basically u can delete common terms in numerator and denominator according to this statement \(\Large \dfrac{a}{a}=1 \)

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0so what can u cancel from this ?dw:1440440526567:dw

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0for example dw:1440440587931:dw

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0what else can u cancel to make in the simplest form ?

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0yes one of them note that \(\Large a^2=a.a\)

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0dw:1440440792739:dw now whats left ?

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0PS : 21=3*7 & 35=5*7

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so my answer would be d? @ikram002p

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1I don't think you need to know that \(\color{blue}{\left\{a,~b\right\}>0}\).

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0don't forget the minus sign ``

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh so my answer would be c

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Don't really know why the posted it, if b/b and a/a is 1 for any a even if was \(i\cdot \psi \cdot e \cdot \pi\)

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0we have canceled b from numerator

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0@SolomonZelman she need to know since a^2=a.a :D to be more accurate about the answer

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1a•a you mean by a.a ?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1\(\large\color{black}{ \displaystyle \frac{ 21a^2b }{35ab} =\frac{(3)\cdot7\cdot a \cdot a \cdot b}{5 \cdot 7\cdot a \cdot b} =\frac{(3)\cdot a}{b}\times \frac{7\cdot a \cdot b}{7\cdot a \cdot b}}\) i haven't crossed any numbers out, all I did so far is a rearrangement that is valid \(\forall~~a,b\) (for all a and b)

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0yes which looks more nice :)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1Thanks:) I mean even if there is any point in making a>0, though in by "b" we would never need such a condition.

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1oh, they should have said b and a are not 0, tho' ....

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1ok, now you know that because they said a and b >0. So Blank/Blank = 1, right?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1u left with. ....

ikram002p
 one year ago
Best ResponseYou've already chosen the best response.0i agree with u but OP seems left :P
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