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Let veca,vecb and vecc be three vectors ...

Let `veca,vecb and vecc` be three vectors such that `vecane0, |veca|=|vecc|=1,|vecb|=4and |vecbxxvecc|=sqrt15`. If `vecb-2vecc=lambdaveca` then find the value of `lambda` .

A

`pm2`

B

`pm1`

C

`pm2sqrt2`

D

`pm4`

Text Solution

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The correct Answer is:
C
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