# suppose a,b,c are the sides of the triangle and a+b+c= 2*s. prove that 1/s-a+1/s-b+1/s-c-1/s= a*b*c/s(s-a)s-b)(s-c)

suppose a,b,c are the sides of the triangle and a+b+c= 2*s. prove that 1/s-a+1/s-b+1/s-c-1/s= a*b*c/s(s-a)s-b)(s-c)

suppose a,b,c are the sides of the triangle and a+b+c= 2*s. prove that 1/s-a+1/s-b+1/s-c-1/s= a*b*c/s(s-a)s-b)(s-c)