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Vector ` vec c` is perpendicular to vectors ` vec a=(2,-3,1)a n d vec b=(1,-2,3)` and satisfies the condition ` vec cdot( hat i+2 hat j-7 hat k)=10.` Then vector ` vec c` is equal to a.`(7,5,1)` b. `-7,-5,-1` c. `1,1,-1` d. none of these

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CENGAGE ENGLISH-VECTOR ALGEBRA-All Questions
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