Consider a= ⟨−2,5,1⟩, b= ⟨−5,2,−5⟩ and c= ⟨−1,−5,4⟩. find the angles between the following vectors: the angle between a and b is:

Step-by-step explanation:

We are given that

and c=<-1,-5,4>

We have to find the angles between  a and b .

Angle between two vectors a and b is given  by

Using the formula

Hence, the angle between a and b=

78.59 is the mean

step-by-step explanation:

f is the midpoint of