In Delta ABC Prove that following 4...

In `Delta ABC ` Prove that following
` 4( r_1r_2+ r_2r_3+r_3r_1) = (a+ b+ c) ^(2) `

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In Delta ABC Prove that following 4( r1r2+ r2r3+r3r1) = (a+ b+ c)...
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In DeltaABC,(r2(r3+r1))/sqrt(r1 r2+r2 r3+r3r1)=
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Show that r(r(1)+r(2)+r(3))=ab+bc+ca-s^(2).
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( r 1) /( (s-b) (s-c) ) + ( r2)/( (s-c) (s-a) ) + ( r3)/((s-a) ( s-b))...
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Show that (1)/(r^(2))+(1)/(r(1)^(2))+(1)/(r(2)^(2))+(1)/(r(3)^(2))=(a^...
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Prove that ((1)/(r)-(1)/(r(1)))((1)/(r)-(1)/(r(2)))((1)/(r)-(1)/(r(3))...
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(r2+r3) sqrt((r r1)/( r2r3)) = a
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(r1+r2) tan ""(c)/(2) = ( r3-r) cot ""( c)/(2) =c
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r1r2r3 = r^(3) cot^(2) ""(A)/(2) cot ^(2) ""( B)/(2) "" cot ^(2) ""(C...
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