The line vecr=alpha(hati+hatj+hatk)+3hat...

The line `vecr=alpha(hati+hatj+hatk)+3hatk and vecr=beta(hati-2hatj+hatk)+3hatk` (A) intersect at rilghat angles (B) are skew (C) are parallel (D) none of these

A

Intersects at rifht angle

B

Are skew

C

Are parallel

D

Are not perpendicular

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The correct Answer is:

A

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