If `3vecp+2vecq=hati+hatj+hatk and 3 vecp-2vecq=hati-hatj-hatk` then the angle between `vecp and vecq` is (A) `pi/6` (B) `pi/4` (C) `pi/3` (D) `pi/2`

If a =2hati+3hatj+4hatk and b =4hati+3hatj +2hatk ,find the angel between a and b.

If vecP.vecQ=PQ then angle between vecP and vecQ is

If vecP=2hati+4hatj " and " vecQ=4hati-4hatj+10hatk find the magnitude of vecP+vecQ

If vecA 2 hati +hatj -hatk, vecB=hati +2hatj +3hatk, vecC=6hati -2hatj-6hatk angle between (vecA+vecB) and vecC will be

If |vecP + vecQ| = |vecP -vecQ| the angle between vecP and vecQ is

IF vecP = 2 hati + 4 hatj +14 hatk and vecQ = 4 hati +4 hatj + 10 hatk find the magnitude of vecP + vecQ

vecP = (2hati - 2hatj +hatk) , then find |vecP|

The acute angle between the lines vecr=(4hati-hatj)+lamda(2hati+hatj-3hatk) and vecr=(hati-hatj+2hatk)+t(hati-3hatj+2hatk) is (A) (3pi)/2 (B) pi/3 (C) (2pi)/3 (D) pi/6

The resultant of vecP and vecQ is perpendicular to vecP . What is the angle between vecP and vecQ

If a=3hati-2hatj+hatk,b=2hati-4hatj-3hatk and c=-hati+2hatj+2hatk , then a+b+c is