Question

Two vectors with a magnitude of 5 and 12 have a dot product equal to -6. Find the angle between the vectors to the

nearest degree.

Answer 1

the angle between vectors is 1

let, vector A,B and |A| =5 , |B| =12

According to dot product,

A.B = |A| |B| cos∝

-6 = 5x12cos∝

cos∝ = 0.99

nearly equal to 1

hence the angle between A and B is 1