1.

\frac{(5-a)^{2}}{(5-b)(s-c)}+\frac{(s-b)^{2}}{(s-c)(s-a)}+\frac{(s-c)^{2}}{(s-a)(s-b)}

Answer»

When we take LCM

We get

(s-a)³ + (s-b)³ + (s-c)³ /(s-a)(s-b)(s-c)

Since 3s = a + b+c

Then

Denominator will become

3 (s-a)(s-b)(s-c). Hence answer will be 3



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