What is #|| <7, 3, -1> - < -2 , 5, 3 > ||#?
1 Answer
Jan 10, 2017
See below.
Explanation:
To subtract two vectors
#veca-vecb=< a_1-b_1,a_2-b_2, a_3-b_3 >#
The result is a vector,
The magnitude of the resultant vector is then given by:
#|vecc|=sqrt((c_1)^2+(c_2)^2+(c_3)^2)#
Given
#veca-vecb= < 7-(-2), 3-5, -1-3 >#
#=< 9, -2, -4 >#
The magnitude is then:
#|vecc|=sqrt(9^2+(-2)^2+(-4)^2)#
#=sqrt(101)#