p= i-3j+3k, q=-i+2j+6k. find the angle between p and q
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Answer:
|p|*|q|/|p*q|this is the formula
Explanation:
i-3j+3k. -i+2j+6k=-6+18=12
|p*q|=12
|p|=1+9+9=√19
|q|=1+4+36=√41
the ans is √19*√41/12
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