If `C=60^(@), " then show that"(a)/(b+c)+(b)/(c+a)=1`

In a triangleABC," if "C=60^(@)," then "(a)/(b+c)+(b)/(c+a)=

In a triangleABC," if "C=60^(@)," then "(a)/(b+c)+(b)/(c+a)=

If C= 60 ^(@) " then " ( a) /( b+ c) + ( b) /( c+a) =

If C = 60 ^(@) then show that (b)/( c^(2) -a^(2)) + (a)/( c^(2) - b^(2)) =0.

If C=60^(@). then prove that (1)/(a+c)+(1)/(b+c)=(3)/(a+b+c)

If a, b, c are In A.P., then show that, (1)/(b c), (1)/(c a), (1)/(a b) are in A.P.

If A = 60 ^(@) " then " ( 1)/(a+b) + (1) /( a+ c) =

If C=60^(@) , show that, 2a-b = 2 c cosB

If (b+c)^(-1), (c+a)^(-1), (a+b)^(-1) are in A.P. then show that (a)/(b+c) , (b)/(c+a) , (c)/(a+b) are also in A.P.