4. lineqnsoln - PHYS 221 General Physics II - Calculus...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYS 221 General Physics II - Calculus Supplement Grist Homework Solution “Systems of Simultaneous Linear Equations” (1) Evaluate the determinates of the following matrices: () () () 24 25 14 1 04 15 ⎡⎤ == − = = ⎢⎥ ⎣⎦ D6 ( )( )( ) ( ) ( ) ( ) () ( ) ( ) () 41 12 51 09 16 6 8 4 10 8 16 10 2 11 9 16 6 9 4 2 5 6 8 5 11 320 320 1,584 216 60 440 = = − + −+− =−+ −+−= D 988 (2) Solve the following system of equations using determinates: 23 257 x y xy −= ( )( ) ( )( ) 3 7 32 75 1 11 13 77 1 x y Det Det −− ⎡⎤ ⎡⎤ =⇒ = = ⎢⎥ ⎢⎥ ⎣⎦ ⎣⎦ = D- 1 y= -1 x 1 0 (3) Solve the following system of equations using either a math software program (i.e. Mathview, Mathcad, Mathematica, etc.) or your calculators matrices program. Note what you used. 10 235 2 2 3 100 x yz xyz ++= −−= Setting up the matrices gives the following… Then using my calculator’s matrices program… 111 10 235 2 0 100 123 x y z ⎡⎤ ⎡ ⎢⎥ ⎢ =− ⎣⎦ ⎣ 38 -22 -6 x= z=
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
PHYS 221 General Physics II - Calculus Supplement Grist (4) Four gizmos and three whatsits cost $42, while three gizmos and seven whatsits cost
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/09/2010 for the course PHYS 221 taught by Professor G.r.grist during the Spring '09 term at Skyline College.

Page1 / 2

4. lineqnsoln - PHYS 221 General Physics II - Calculus...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online