Question

Passage I
Let a, b and cbe three real numbers satisfying
[1 9
[a b c] 8 2 7] = [0 0 0]
...(i)
7 3 7
(2011)
14. If the point P (a, b, c), with reference to Eq. (i), lies on
,
the plane 2x + y + z =1, then the value of 7a + b + cis
(a) 0
(b) 12
(c) 7
(d) 6​

Answer 1

Answer:

I think option

B is the answer I hope it helps to you plz mark me as brainliest