If xyz ? 0, is x (y + z) = 0?
(1) ¦y + z¦ = ¦y¦ + ¦z¦
(2) ¦x + y¦ = ¦x¦ + ¦y¦
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This topic has expert replies
I get A.
x,y,z are not 0
Stmt 1 : It basically means. z+y can never be 0. Hence x (y + z) = 0 can never be 0. Suff
Stmt 2 : Doesnt say anything abt z. insuff. For example : if x = 3, y = 2 and z = -2. The equation equals 0.
x,y,z are not 0
Stmt 1 : It basically means. z+y can never be 0. Hence x (y + z) = 0 can never be 0. Suff
Stmt 2 : Doesnt say anything abt z. insuff. For example : if x = 3, y = 2 and z = -2. The equation equals 0.
