1.

Given the vectors vec(A) = 2 hat(i) + 3hat(j) - hat(k), vec(B) = 3hat(i) - 2hat(j) - 2 hat(k) " & " vec( C) = p hat(i) + p hat(j) + 2 p hat(k) find the angle between (vec(A) - vec(B)) " & " vec( C)

Answer»

`THETA = cos^(-1) ((2)/(sqrt3))`
`theta = cos^(-1) ((sqrt3)/(2))`
`theta = cos^(-1) ((sqrt2)/(3))`
NONE of these

Answer :C


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