The angle between the vector `3hat(i)+4hat(j)+5hat(k)` and the z-axis is

Find the angle between the vectors 2 hat(i) - hat(j) - hat(k) and 3 hat(i) + 4 hat(j) - hat(k) .

What is the angle between the vector vec( r)=(4hat(i) +8hat(j) +hat(k)) and the x-axis ?

The angle between the two Vectors vec(A)= 3hat(i)+4hat(j)+5hat(k) and vec(B)= 3hat(i)+4hat(j)-5hat(k) will be

The angle between the two Vectors vec(A)= 3hat(i)+4hat(j)+5hat(k) and vec(B)= 3hat(i)+4hat(j)-5hat(k) will be

The angle between the vectors : vec(a)=hat(i)+2hat(j)-3hat(k) and 3hat(i)-hat(j)+2hat(k) is :

The angle between the vectors 4hat(i)+3hat(j)-4hat(k) and 3hat(i)+4hat(j)+6hat(k) is :

The angle between two vectors vec(A)= 3hat(i)+4hat(j)+5hat(k) and vec(B)= 3hat(i)+4hat(j)+5hat(k) is

The angle between the vectors (hat i + hat j + hat k) and ( hat i - hat j -hat k) is

Find the angle between the vectors hat(i)+3hat(j)+7hat(k) and 7hat(i)-hat(j)+8hat(k) .