awesomebunny24
awesomebunny24
05-09-2015
Mathematics
contestada
R(r1+r2) = r1r2, For r2
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konrad509
konrad509
05-09-2015
[tex]R(r_1+r_2)=r_1r_2\\ Rr_1+Rr_2=r_1r_2\\ Rr_2-r_1r_2=-Rr_1\\ r_2(R-r_1)=-Rr_1\\ r_2=-\dfrac{Rr_1}{R-r_1} [/tex]
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