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If bara,barb,barc are any vectors, then ...

If `bara,barb,barc` are any vectors, then which of these sets of vectors are coplanar

A

(a) `bara+barb,barb+barc,barc+bara`

B

(b) `baraxxbarb,barbxxbarc,barcxxbara`

C

(c) `bara-barb,barb-barc,barc-bara`

D

(d) `bara+2barb,barb+2barc,barc+2bara`

Text Solution

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The correct Answer is:
C
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