8. Choose and work either (a) or (b), NOT BOTH. (a) Let g be defined on J = [0, 3.5] by g(x) = [x] and let f: J R be defined 3.5 3.5 by f(x) = cos(27T). Explain why do the integrals of f dg and f da c3.5 exist and compute I f d(2g(a) + 3x).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Real Analysis 1- SOLVE 8A in DETAIL

8. Choose and work either (a) or (b), NOT BOTH.
(a) Let g be defined on J = [0,3.5] by g(x) = |x| and let f: J R be defined
r3.5
r3.5
by f(x)
= cos(2Tr). Explain why do the integrals of
f dg and
f dx
0.
r3.5
exist and compute
f d(2g(z) +3x).
(b) Let f: [0, 2] R be the constant function f(x) = -2 for all r E [0, 2] and let
g : [0, 2] R be g(r) = r². Prove that f is R-S integrable with respect to g
%3D
c2
on 0, 2] and compute the value of
| fdg.
Transcribed Image Text:8. Choose and work either (a) or (b), NOT BOTH. (a) Let g be defined on J = [0,3.5] by g(x) = |x| and let f: J R be defined r3.5 r3.5 by f(x) = cos(2Tr). Explain why do the integrals of f dg and f dx 0. r3.5 exist and compute f d(2g(z) +3x). (b) Let f: [0, 2] R be the constant function f(x) = -2 for all r E [0, 2] and let g : [0, 2] R be g(r) = r². Prove that f is R-S integrable with respect to g %3D c2 on 0, 2] and compute the value of | fdg.
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