Use a Graphing Calculator to Find the Matrix Product And/or

question 110

Multiple Choice

Use a graphing calculator to find the matrix product and/or sum.
- $$\mathrm{A}=\left[\begin{array}{rrrr}11 & 14 & 18 & 18 \\30 & 5 & 7 & 2 \\11 & 3 & 2 & 1 \\5 & 32 & 5 & 19\end{array}\right] \mathrm{B}=\left[\begin{array}{rrr}12 & 5 & 3 \\18 & 8 & 12 \\7 & 4 & 2 \\21 & 15 & 0\end{array}\right]$$

• A) \( \left[\begin{array}{rrr}888 & 509 & 237 \\ 541 & 248 & 164 \\ 221 & 102 & 73 \\ 1070 & 586 & 409\end{array}\right] \)
• B) \( \left[\begin{array}{rrr}732 & 305 & 113 \\ 792 & 352 & 528 \\ 119 & 68 & 34 \\ 1281 & 915 & 0\end{array}\right] \)
• C)
• \( \left[\begin{array}{rrrr}220 & 280 & 360 & 360 \\ 1140 & 190 & 266 & 76 \\ 143 & 39 & 26 & 13 \\ 180 & 1152 & 180 & 684\end{array}\right] \)
• D) Does not exist

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Definitions:

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Proposal that neurons or their axons and dendrites are drawn toward a signaling chemical that indicates the correct pathway.

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