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sergey [27]
3 years ago
11

What is the of A in a partial fraction decomposition below?

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

3

Step-by-step explanation:

(8x + 28) / ((x − 1) (x + 2) (x + 3)) = A / (x − 1) + B / (x + 2) + C / (x + 3)

Multiply both sides by (x − 1) (x + 2) (x + 3).

8x + 28 = A (x + 2) (x + 3) + B (x − 1) (x + 3) + C (x − 1) (x + 2)

If x = 1:

8 + 28 = A (3) (4)

36 = 12A

A = 3

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Answer:

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Step-by-step explanation:

A consistent system of equations has at least one solution

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An inconsistent system has no solution

In the system of equations ax + by = c and dx + ey = f, if

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In the given system of equations

∵ -2y + 2x = 3 ⇒ (1)

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∵ 2 ≠ 5

∵ 3 ≠ 12

→ By using the 3rd rule above

∴ The system is consistent independent and has exactly one solution

∴ The system is consistent; it has one solution

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