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Find |vec a xx vecb| where veca = 3hati...

Find ` |vec a xx vecb|` where `veca = 3hati + 4 hatj` and `vecb = hati + hatj + hatk `

A

`45^(@)`

B

`90^(@)`

C

`-45^(@)`

D

`180^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`theta = cos^(-1) ((vecA * vecB)/(AB))`
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