The angle between the planes r. (2i - j + 2k) = 3 and r. (3i - 6j + 2k) = 4

Measure of angle between the planes barr.(2i -j - 2k)=3 and barr.(8i - j - 4k)=5 is

The distance between the planes r. (i+ 2j - 2k ) + 5 =0 and r. (2i + 4j - 4k ) - 16 =0 is

The angle between planes r*(2i-3j+4k)+11=0 and r.(3i-2j-3k)+27=0 is

The angle between the line r = (i + 2j + 3k) + lambda (2i + 3j + 4k) and the plane r.(i + 2j -2k) = 0 is a) 0^(@) b) 60^(@) c) 30^(@) d) 90^(@)

Measure of angle between the planes bar(r ).(3i+j-k)=1 and barr.(i+4j-2k)=2 is

The angle between the vectors 2i - 3j + k and 4i+ j-2k is given by