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

1.	Find\|vec a xx vecb\| where veca = 3hati + 4 hatj and vecb= hati + hatj + hatk
Answer» `45^(@)` `90^(@)` `-45^(@)` `180^(@)` SOLUTION :`theta = cos^(-1) ((vecA * VECB)/(AB))`

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