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If vec a= hat i+ hat j+ hat k& vec b= h...

If ` vec a= hat i+ hat j+ hat k& vec b= hat i-2 hat j+ hat i` , then the vector ` vec c` such that ` vec adot"" vec c=2&"" vec ax"" vec c="" vec b` is `1/3( hat i-2 hat j+ hat k)` (b) `1/3(- hat i+2 hat j+5 hat k)` `1/3( hat i+2 hat j-5 hat k)` (d) `1/2(- hat i+2 hat j-5 hat k)`

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