Question

If theta is the angel between unit vectors A and B, then (1-A.B)/(1+A.B) is equal to?

Answer 1

Answer:

solved

Explanation:

let  theta = ∝

since  A and B are unit vectors , then

(1-A.B)/(1+A.B) = (1-cos∝)/(1+cos∝) = 2sin²∝/2 ÷ 2cos²∝/2 = tan²(∝/2)