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

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

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 two vectors vec A= 3 hat i + 4 hat j + 5 hat k and vec B = 3 hat i + 4 hat j + 5 hat k will be

The value of lambda for which the two vectors vec(a) = 5hat(i) + lambda hat(j) + hat(k) and vec(b) = hat(i) - 2hat(j) + hat(k) are perpendicular to each other is :

The value of lambda for which the two vectors vec(a) = 5hat(i) + lambda hat(j) + hat(k) and vec(b) = hat(i) - 2hat(j) + hat(k) are perpendicular to each other is :

If vec(A) and vec(B) are perpendicular Vectors and vector vec(A)= 5hat(i)+7hat(j)-3hat(k) and vec(B)= 2hat(i)+2hat(j)-ahat(k) . The value of a is

If vec(A) and vec(B) are perpendicular Vectors and vector vec(A)= 5hat(i)+7hat(j)-3hat(k) and vec(B)= 2hat(i)+2hat(j)-ahat(k) . The value of a is