If `|vec(a)| = 2, |vec(b)|= 7 and (vec(a) xx vec(b))=(3 hat(i) + 2 hat(j) + 6 hat(k)), " find the angle between " vec(a) and vec(b).`

If |vec(a)| = 2, |vec(b)| = 7 and vec(a) xx vec(b) = 3hat(i) + 2hat(j) + 6hat(k) , find the angle between vec(a) and vec(b) .

If |vec(a)| = sqrt(2) , |vec(b)| = 7 and vec(a) xx vec(b) = 2 hat(i) + 6 hat(j) + 3 hat(k) . Find the angle between vec(a) and vec(b) .

If |vec(a) | =2, | vec(b) |=7 and vec(a) xx vec(b) = 3 hat(i) + 2hat(j) +6 hat(k) , then the angle between vec(a) and vec(b) is

If vec(a) = 5 hat(i) - hat(j) - 3 hat(k) and vec(b) = hat(i) + 3 hat(j) - 5 hat(k) , find the angle between vec(a) and vec(b) .

If |a|=2,|b|=7 and vec a x vec b=3 hat i+2 hat j+6 hat k , find the angle between vec a and vec b .

If | vec a|=2,\ | vec b|=7\ a n d\ vec axx vec b=3 hat i+2 hat j+6 hat k ,\ find the angle between vec a\ a n d\ vec bdot

If | vec a|=2,\ | vec b|=7\ a n d\ vec axx vec b=3 hat i+2 hat j+6 hat k ,\ find the angle between vec a\ a n d\ vec bdot

If vec(a) = hat(i) - 2 hat(j) + 3 hat(k) and vec(b) = 2 hat(i) - 3 hat(j) + 5 hat(k) , then angle between vec(a) and vec(b) is

If vec(a)=(hat(i)+2hat(j)-3hat(k)) and vec(b)=(3hat(i)-hat(j)+2hat(k)) then the angle between (vec(a)+vec(b)) and (vec(a)-vec(b)) is