If the vectors ` a hat(i) + hat(j) + hat(k) , hat(i) + b hat(j) + hat(k)` and `hat(i) + hat(j) + c hat(k)` `(a ne b

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Q 2210056810.     If the vectors ` a hat(i) + hat(j) + hat(k) , hat(i) + b hat(j) + hat(k)` and `hat(i) + hat(j) + c hat(k)`

`(a ne b , c ne 1)` are coplanar, then the value of

`1/(1-a) +1/(1-b) +1/(1-c)` is
A

`1`

B

`-1`

C

`2`

D

None of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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