यदि veca = hati - 7hatj + 7hatk ...

यदि `veca = hati - 7hatj + 7hatk ` और ` vecb = 3hati - 2hatj + 2hatk ` तो `|veca xx vecb|` ज्ञात कीजिए |

A

`19sqrt(3)`

B

`19sqrt(5)`

C

`19sqrt(2)`

D

`19sqrt(7)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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