5b=5(2,-3)=(10,-15)
a=5b implies:
2m-3n=10
4n-m=-15
Multiplying the second equation by 2:
2m-3n=10
8n-2m=-30
Solving by elimination method:
5n=-20,n=-4
By substituting back n=-4 in equation 1:
2m-3(-4)=10
2m=10-12
2m=-2
m=-1
Therefore, (m,n)=(-1,-4)
Frequently asked questions (FAQs)
Question: Find the cube root of 64 and double it to obtain y. If the cube root is denoted as f(x), what is f(64) = y? (
+
What is the length of the altitude of a triangle with sides measuring 9, 12, and 15 units?