DeterminantHard
Question
If a, b, and c, nonzero real numbers, then 
is equal to -
is equal to -Options
A.a2b2c2(a + b + c)
B.abc(a + b + c)2
C.zero
D.non of these
Solution
D = 
(R1 → aR1, R2 → bR2, R3 → cR3)
= abc
= abc (ab + bc + ca)
(C1 → C3 + C1)
= 0
(R1 → aR1, R2 → bR2, R3 → cR3)
= abc
= abc (ab + bc + ca)
(C1 → C3 + C1)
= 0
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