Mybrainvsme
okay.. simplify this.. r/r1  r²/r² .... good luck lol



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dumbcow
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well, r^2/r^2 = 1

dinainjune
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r/r1  1
rr1/r1
1/r1

Nick_Black
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r/r1  r²/r²
r²/r²=1
(r/r1)1
(r/r1)(r1/r1)
rr1/r1
1/r1

Mybrainvsme
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where did the second r come from din?

dumbcow
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\[\frac{r}{r1}  1 = \frac{r}{r1} \frac{r1}{r1} = \frac{r(r1)}{r1} = \frac{1}{r1}\]

Mybrainvsme
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I'm sorry, how are you getting r1/r1?

dumbcow
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just adding it, but because it equals 1 it doesn't change expression's value

Mybrainvsme
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ooo

dumbcow
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thats the only way to combine fractions, get a common denominator

Mybrainvsme
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hmm

Mybrainvsme
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thanks for your explanations dumbcow.

dumbcow
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no problem, thats how you learn
thanks for wanting them :)