In a triangle \( A B C \), if \( r_{1}=2 r_{2}=3 r_{3} \) then
\( [100-(4 a / 5 b)]^{2} \) is eq....
In a triangle \( A B C \), if \( r_{1}=2 r_{2}=3 r_{3} \) then
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\( [100-(4 a / 5 b)]^{2} \) is equal to \( 9800+k, k= \)
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