Find the acute angle between the planes `barr*(2hati + hatj - hatk) = 3` and `barr*(hati + 2hatj + hatk) =1`.

The angle between the planes barr*(hati - 2hatj + 3hatk) + 4 = 0 and barr *(2hati + hatj - 3hatk) = 0 is

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

Find the value of p, if the planes barr *(phati - hatj + 2hatk) + 3 = 0 and barr*(2hati - phatj - hatk) -5 = 0 include an angle of (pi)/(3) .

Find the acute angle between the planes vecr(2hati-3hatj+5hatk)=1 and vecr(hati-hatj-hatk)=7 .

The angle between planes barr.(2hati+hatj-hatk)=3andbarr.(hati+2hatj+hatk)=1 is

Find the acute angle between the following planes: i) vecr.(hati+hatj-2hatk)=5 and vecr.(2hati+2hatj-hatk)=9 ii) vecr.(hati+2hatj-hatk)=6 and vecr.(2hati-hatj-hatk)+3=0

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

Find the angle between the line barr = (hati + 2hatj + hatk) + lambda(hati +hatj + hatk) and the plane barr*(2hati - hatj + hatk) = 5 .

Find the angle between the planes whose vector equations are barr *(2hati + 2hatj - 3hatk) = 5 and barr *(hati -2hatj+hatk) =7 .