Let veca=hati-hatk, vecb=xhati+hatj+(1-x...

Let `veca=hati-hatk, vecb=xhati+hatj+(1-x)hatk` and `vecc=yhati+xhatj+(1+x-y)hatk`, then `[veca vecb vecc]` depends on

A

only y

B

only x

C

both x and y

D

neither x nor y

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The correct Answer is:

D

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