Loading [MathJax]/jax/output/HTML-CSS/jax.js
Home / Aptitude Tests / Further Mathematics / Find correct to the ...
Find correct to the nearest degree,5 the angle between ...

Find correct to the nearest degree,5 the angle between p = 12i - 5j and q = 4i +3j

A.

59o

B.

60o

C.

75o

D.

76o

Correct answer is A

Cos θ = 4(12)+(5)(3)122+(5)242+32

Cosθ = 4815(189)(25)

θ=cos1 (3361.28)

θ = cos10.5367

θ = 59o