MAT253 POW #3 30 points Name _________________________________
No Work = No Credit
1) Use Cramer’s Rule to solve the following system of linear equations
{14𝑥−21𝑦+14𝑧=7
−21𝑥+14𝑦+7𝑧=5
28𝑥+7𝑦−21 𝑧=6
2) Describe the additive inverse of a vector in the vector space for M1, 4
The additive inverse of the vector V=(V1 V2 V3 V4) in the vector space M1,4 is -V=(-V1 -V2 -V3 -V4)
I know you may want me to show
how I solved the determinants.
Although I did on this screen, I
realized it could not fit. I am also at
my grandparents and forgot my
digital pen. If you want it I can
provide proof. I was going to ask
for an extension but I noticed that
you don't for this.
