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Likurg_2 [28]
3 years ago
15

Why is D the answer?

Mathematics
1 answer:
kirill115 [55]3 years ago
8 0

Step-by-step explanation:

a = 3, b = 8, and f(x) = √(1 + x).

Δx = (b − a) / n = 5/n

Plugging into the Riemann sum:

∑₁ⁿ f(a + k Δx) · Δx

∑₁ⁿ √(1 + (3 + 5k/n)) · 5/n

∑₁ⁿ √(4 + 5k/n) · 5/n

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