If anyone can solve this, I'll give them 50 creds. First person to get it right gets the creds. You have to use an augmented matrix to solve it though. And if you show your work ill give you an extra 50 creds. 2a + 3b + 4c + 5d = 4 4b + 3c - d = 1 3a + b - 2c + 7d = -7 a - 2b + 3d = 2 good luck Merged Post: no takers?
you shouldn't have to use any matrices to solve the equation, though it does make it a little easier...if no one attempts this soon will slve for you. Daz
is the algerbra 2 math? I never even heard of augmented matrix when I was in high school but that was a long time ago
2a + 3b + 4c + 5d = 4 4b + 3c - d = 1 3a + b - 2c + 7d = -7 a - 2b + 3d = 2 -------------------------------------------------- a = 2b + 3d + 2 b = 2c -7d - 3a - 7 d = 4b + 3c -1 Solve from there... I'm not gonna totally help you do your hw Merged Post: a = -11.603... b= .43396... c=1.1981132 d=4.24528... Gimme 50 credits
erm dude u are going to need them at least in exact answers (p/q), thats substitution not matrices as well Daz Merged Post: erm no calc...ur school is harse, not even my degree questions do that too me Daz
Loading up maple...if I can remember how to progtam maple then I might post it up Daz Merged Post: maple answers (checked first 2) a=-3, b=-1, c=2, d=1 sorry haven't got the patience to write out row-echelon in argumentive matrice form (made up btw) 1 0 0 0 | -3 0 1 0 0 | -1 0 0 1 0 | 2 0 0 0 1 | 1 there going to kind of want workings on how you got the above matrix though, you should be able to justify elimation, and pivotting (you can move the rows up and down at will), Daz
ahh dude you are sexy sending creds is there anyway you can send me that program so i can show my work?
the only code I used to solve was u:= expression; solve ([u,v,w,x],[a,b,c,d]); anyways tis free sent creds bk, Daz
