Question

given vector c =vector a+vector b.also the magnitude of vector a,b,c are 12,5,13units respectively. the angel between vector a and b is​

Answer 1

Explanation:

_ _ _

given c=a+b

c=√a²+b²------(1)

we can observe that these are in Pythagoras triplets

(1)st equation is in form of right angle triangle

so it makes an angle 90˚