1.

vec(a)=6hat(i)+7hat(j)+7hat(k),vec(b)=3hat(i)+2hat(j)-2hat(k),P(1,2,3) If A is the point with position vector vec(a) then area of the DeltaPLA in square units is equal to -

Answer»

`3sqrt(6)`
`7sqrt((17)/(2))`
`SQRT(17)`
`(7)/(2)`

ANSWER :B


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