If bara,barb,barc are three non-coplanar...

If `bara,barb,barc` are three non-coplanar vectors such
that `barr_1=bara-barb+barc,barr_2=barb+barc-bara,barr_3=barc+bara+barb, barr=2bara-3barb+4barc,`
if `barr=lambda_1 barr_1+lambda_2 barr_2+lambda_3 barr_3`, then

A

(a) `lambda_1=7`

B

(b) `lambda_1 +lambda_3=3`

C

(c) `lambda_1+lambda_2+lambda_3=5`

D

(d) `lambda_3+lambda_2=2`

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The correct Answer is:

B

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