The planes `vecr.(2hati+3hatj-6hatk)=7 and vecr.((-2)/7hati-3/7hatj+6/7hatk)=0` are (A) parallel (B) at righat angles (C) equidistant from origin (D) none of these

The angle between the planes vecr.(2hati-hatj+hatk)=6 and vecr.(hati+hatj+2hatk)=5 is

If the planes vecr.(2hati-hatj+2hatk)=4 and vecr.(3hati+2hatj+lamda hatk)=3 are perpendicular then lamda=

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

The angle between the planes vecr. (2 hati - 3 hatj + hatk) =1 and vecr. (hati - hatj) =4 is

Find the angle between the planes vecr.(hati+hatj-2hatk)=3 and vecr.(2hati-2hatj+hatk)=2 2

Find the equation of plane passing through the line of intersection of planes vecr.(hati+3hatj) +6=0 and vecr.(3hati-hatj-4hatk)=0 , whose perpendicular distance from origin is one unit.

The distance between the planes given by vecr.(hati+2hatj-2hatk)+5=0 and vecr.(hati+2hatj-2hatk)-8=0 is

Find the distance between the parallel planes: vecr.(2hati-hatj+3hatk)=4 and vecr.(6hati-3hatj+9hatk)+13=0

Find |vecaxxvecb| , if veca=2hati-7hatj+7hatk and vecb=3hati-2hatj+2hatk

Find the distance between the parallel planes vecr.(2hati-3hatj+6hatk) = 5 and vecr.(6hati-9hatj+18hatk) + 20 = 0 .