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

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

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

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

The angle between 3i+4j" and "2j-5k is

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

" The angle between the vectors "2i+j-3k" and "3i-2j-k" is "