a का वह मान ज्ञात कीजिए जिसके लिए सदिश `3hati+2hatj+9hatk` और `hati+ahatj+3hatk` परस्पर लंबवत है

(a.hati)hati+(a.hatj)hatj+(a.hatk)hatk

Shown that the vectors 3 hati+3 hatj+9hatk and hati+hatj+3hatk are parallel.

Write the value of p for which veca = 3 hati + 2hatj + 9hatk and vecb = hati + p hatj + 3hatk are parallel vectors.

The value of 'm', if hati+2hatJ-3hatk is parallel to 3hati+mhatj-9hatk is

If the vectors bara = 3hati +2hatj +9hatk and hatb=hati+ mhatj + 3hatk are parallel then m is………… .

The vector of magnitude 9 unit perpencular to the vectors 4 hati - hatj +3hatk and-2 hati + hatj - 2hatk will be