Question
Exer $29-32$ : Find $A B$$$A=\left[\begin{array}{r}4 \\-3 \\2\end{array}\right], \quad B=\left[\begin{array}{ll}5 & 1\end{array}\right]$$
Step 1
The result will be a 3x2 matrix. Show more…
Show all steps
Your feedback will help us improve your experience
Christopher Stanley and 63 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Exer $29-32$ : Find $A B$ $$A=\left[\begin{array}{rr} 4 & -2 \\ 0 & 3 \\ -7 & 5 \end{array}\right], \quad B=\left[\begin{array}{l} 3 \\ 4 \end{array}\right]$$
Systems of Equations and Inequatities
The Algebra of Matrices
Exer. $21-28$ : Given that $a=\langle 2,-3\rangle, b=\langle 3,4\rangle,$ and $\mathbf{c}=\langle-\mathbf{1}, \mathbf{5}\rangle,$ find the number. (a) $\mathbf{b} \cdot(\mathbf{a}-\mathbf{c})$ (b) $\mathbf{b} \cdot \mathbf{a}-\mathbf{b} \cdot \mathbf{c}$
Applications of Trigonometry
The Dot Product
Exer $29-32$ : Find $A B$ $$A=\left[\begin{array}{rrrr} 2 & 1 & 0 & -3 \\ -7 & 0 & -2 & 4 \end{array}\right], \quad B=\left[\begin{array}{rrr} 4 & -2 & 0 \\ 1 & 1 & -2 \\ 0 & 0 & 5 \\ -3 & -1 & 0 \end{array}\right]$$
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD