Question

If the unit vectors e1 and e2 are inclined at angle 2theta and |e1-e2|<1 for theta may lie in interval;

Answer 1

Step-by-step explanation:

Since a and b are unit vectors |a| = |b| =1 Let angle be x between vectors a and b ... |a-b| = {|a|^2 +|b|^2 + 2 |a||b|cos(180- x)}^0.5 ... Why we use sin theta and cos theta in an angle

Answer 2

Step-by-step explanation:

If the unit vectors e1 and e2 are inclined at angle 2theta and |e1-e2|<1 for theta may lie in interval;