Câu 52: Phân s? $\frac{a}{b} = \frac{c}{d}$ v?i $a, b, c, d \in \mathbb{Z}$ và $b, d \neq 0$ khi A. $ad = bc$. B. $ab = dc$. C. $ac = bd$. D. $a + d = b + c$.
Added by Jessica P.
Close
Step 1
In the first equation, we have vdj = ah.e;d + €7vi + hd + 0 khi. We need to find the values of a, b, c, and d. Show more…
Show all steps
Your feedback will help us improve your experience
Nathan Smith and 98 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
Find the values of a, b, c, d such that the following equation holds for x ∈ ℝ: 3x^4 - 11x^3 + 10x^2 - 11x - 3 = (x - 3)(ax^3 + bx^2 + cx + d). Find the values of a, b, c, d such that the following equation holds for z ∈ ℂ: z^4 - 9z^3 + 19z^2 + 31z - 102 = (z - 4 + i)(az^3 + bz^2 + cz + d), where i is the imaginary unit.
Madhur L.
Extend the concepts of this section to solve each system. Write the solution in the form $(a, b, c, d)$ $$ \begin{array}{c} -a+4 b+3 c-d=4 \\ 2 a+b-3 c+d=-6 \\ a+b+c+d=0 \\ a-b+2 c-d=-1 \end{array} $$
Solving Systems of Linear Equations
Solving Systems of Three Equations and Applications
Find coefficients c1, c2, c3 for which u = [14, 24, -1] is a linear combination c1v1 + c2v2 + c3v3 of the vectors v1 = [6, 9, 0], v2 = [4, 10, 0], v3 = [4, 5, -1] Enter your answer as a list in the form: [ c1, c2, c3 ]
Ben B.
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
Watch the video solution with this free unlock.
EMAIL
PASSWORD