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VashaNatasha [74]
3 years ago
5

Please answer please will give brainliest

Mathematics
1 answer:
Verizon [17]3 years ago
6 0

could be 17. not sure i´d wait for someone smarter than me to answer.

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Step-by-step explanation:

\lim_{n \to \infty} \sum\limits_{k=1}^{n}f(x_{k}) \Delta x = \int\limits^a_b {f(x)} \, dx \\where\ \Delta x = \frac{b-a}{n} \ and\ x_{k}=a+\Delta x \times k

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= ⅔ x^³/₂ + C |₁⁴

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If ∫₁⁴ f(x) dx = e⁴ − e, then:

∫₁⁴ (2f(x) − 1) dx

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∫ sec²(x/k) dx

k ∫ 1/k sec²(x/k) dx

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k tan(π/(2k))

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k tan(π/(2k)) = k

tan(π/(2k)) = 1

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1/(2k) = 1/4

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