If `a + b + c = 0` , then find the value of `( a + b ) ( b + c ) ( a + c )`

If a + b + c = 0 , then find the value of ( ( a + b ) / c + ( b + c )/a + ( c + a ) / b ) times ( a /( b + c ) + b /( c + a ) + c /( a + b ) ) is :

If a b c=0 , then find the value of {(x^a)^b}^c (a)1 (b) a (c)b (d) c

If   ( a -5 )^2 + ( b - c )^2 + ( c - d )^2 + ( b + c + d - 9 )^2 = 0 , then find the value of ( a + b + c ) ( b + c + d ) is

If abc =0 then find the value of [(x^a)^b]^c .