How to find the modulus of a vector?
Can someone please explain to me how to do question 4 b iii) Thanks heaps!
Can someone please explain to me how to do question 4 b iii) Thanks heaps!
2 Answers
Dec 22, 2017
Explanation:
"given the vector "((x),(y))" then"
|((x),(y))|=sqrt(x^2+y^2)larrcolor(red)"magnitude of vector"
"here "vec(OD)=((3),(2))
rArr|vec(OD)|=sqrt(3^2+2^2)=sqrt13
Dec 22, 2017
Explanation:
To understand this problem we must first know what modulus really means, in this case, the length of the vector...
So
We can see that we can form a right angle triangle, with sides