c) Now compute the numerical value of the definite integral by determining the limit of the summation from b) as n approaches infinity. n (2 + 6x) dx = lim f(x;)Ax = %3D 3 i=1

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Chapter2: Second-order Linear Odes
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c) Now compute the numerical value of the definite integral by determining the limit of
the summation from b) as n approaches infinity.
n
(2+ 6x) dx
= lim )f(x;)Ax
i=1
Transcribed Image Text:c) Now compute the numerical value of the definite integral by determining the limit of the summation from b) as n approaches infinity. n (2+ 6x) dx = lim )f(x;)Ax i=1
In this problem, we will compute the following integral:
(2 + 6x) dx
We will compute the definite integral using the equality
f(x) dx =
n
b – a
lim f(x;)Ax where Ax =
and xi
= a + iAx.
n
i=1
a) Imagine dividing the interval [3, 9] into n subintervals of equal width, where A is
the width of each of these subintervals, and x; is the right-endpoint of the ith
subinterval. Determine Ax and x;, where each is a function in n.
i) Ax =
ii) x; =
b) Using the answers you found above, compute f(x;)Ax for f (x) = 2 + 6x as
i=1
a summation. Note that your answer is a function of n.
>f(x;)Ax
i=1
Transcribed Image Text:In this problem, we will compute the following integral: (2 + 6x) dx We will compute the definite integral using the equality f(x) dx = n b – a lim f(x;)Ax where Ax = and xi = a + iAx. n i=1 a) Imagine dividing the interval [3, 9] into n subintervals of equal width, where A is the width of each of these subintervals, and x; is the right-endpoint of the ith subinterval. Determine Ax and x;, where each is a function in n. i) Ax = ii) x; = b) Using the answers you found above, compute f(x;)Ax for f (x) = 2 + 6x as i=1 a summation. Note that your answer is a function of n. >f(x;)Ax i=1
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