1.

If a=6hat(i)+7hat(j)+7hat(k), b=3hat(i)+2hat(j)-2hat(k), P(1, 2, 3) Q. If A is the point with position vector a then area of the triangle trianglePLA is sq. units is equal to

Answer»

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

ANSWER :(b)


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