Question

if the magnitude of vectors a b c are 12, 5,13 units and a + b is equal to C then angle between a and b is​

Answer 1

Answer:

90

Explanation:

let,

the vectors a b and c be 12i 5j 13k

these three vectors form right angled triangle

and the right angle is between the vectors 12i and 5j

so,

these vectors resultant is 13k

so,

the angles between two vectors a and b is 90