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nikklg [1K]
4 years ago
13

Please help with this |4x−1|=7 (x is NOT 2 and 1.5)

Mathematics
1 answer:
professor190 [17]4 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

The absolute value always returns a positive result, however the expression inside can be positive or negative, that is

4x - 1 = 7 OR 4x - 1 = - 7

4x - 1 = 7 ( add 1 to both sides )

4x = 8 ( divide both sides by 4 )

x = 2

OR

4x - 1 = - 7 ( add 1 to both sides )

4x = - 6 ( divide both sides by 4 )

x = \frac{-6}{4} = - \frac{3}{2} = - 1.5

Solutions are x = - 1.5 or x = 2

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Step-by-step explanation:

A Maclaurin series is a Taylor series that's centered at 0.

f(x) = ∑ₙ₌₀°° f⁽ⁿ⁾(0) / n! xⁿ

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f(x) = ∑ₙ₌₀°° (n + 1)! / n! xⁿ

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Use ratio test to find the radius of convergence.

lim(n→∞)│aₙ₊₁ / aₙ│< 1

lim(n→∞)│[(n + 2) xⁿ⁺¹] / [(n + 1) xⁿ]│< 1

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4 0
3 years ago
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sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
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solmaris [256]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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Answer:

Step-by-step explanation:

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3 years ago
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3 years ago
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