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Calculating definite integrals with limits of Riemann sums: Calculate

the exact value of each the following definite integrals by

setting up a general Riemann sum and then taking the limit

as n→∞.

∫352x+4dx

Short Answer

Expert verified

The exact value is 24 .

Step by step solution

01

Step 1. Given information .

Consider the given integral∫352x+4dx.

02

Step 2.  Formula used .

∫abfxdx=limn→∞∑i=1nfa+k·δxδx

03

Step 3. Find the value .

∫352x+4dx=δx=5-3n=2na+k·δx=3+k2nfa+k·δx·δx=23+2kn·2n=4kn+1·2n∫abfxdx=limn→∞∑k=1nfa+k·δx·δx=limn→∞∑k=1n8kn2+20n=8n2·nn+12+20n·n=24

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