Graphical Reasoning Consider the region bounded by the graphs of y = x 2 and y = b , where b > 0 . (a) Sketch a graph of the region. (b) Set up the integral for finding M y . Because of the form of the integrand, the value of the integral can be obtained without integrating. What is the form of the integrand? What is the value of the integral and what is the value of x ¯ ? (c) Use the graph in part (a) to determine whether y ¯ > b 2 or y ¯ < b 2 . Explain. (d) Use integration to verify your answer in part (c).
Graphical Reasoning Consider the region bounded by the graphs of y = x 2 and y = b , where b > 0 . (a) Sketch a graph of the region. (b) Set up the integral for finding M y . Because of the form of the integrand, the value of the integral can be obtained without integrating. What is the form of the integrand? What is the value of the integral and what is the value of x ¯ ? (c) Use the graph in part (a) to determine whether y ¯ > b 2 or y ¯ < b 2 . Explain. (d) Use integration to verify your answer in part (c).
Solution Summary: The author explains how the graph is a parabola intersected by the equations y=x2, whose vertex is at origin.
Graphical Reasoning Consider the region bounded by the graphs of
y
=
x
2
and
y
=
b
, where
b
>
0
.
(a) Sketch a graph of the region.
(b) Set up the integral for finding My. Because of the form of the integrand, the value of the integral can be obtained without integrating. What is the form of the integrand? What is the value of the integral and what is the value of
x
¯
?
(c) Use the graph in part (a) to determine whether
y
¯
>
b
2
or
y
¯
<
b
2
. Explain.
(d) Use integration to verify your answer in part (c).
With differentiation, one of the major concepts of calculus. Integration involves the calculation of an integral, which is useful to find many quantities such as areas, volumes, and displacement.
2
Graph of h
6. The graph of the function h is given in the xy-plane. Which of the following statements is correct?
, the graph of h is increasing at an increasing rate.
(A) For
(B) For
(C) For
苏|4 K|4
π
π
, the graph of h is increasing at a decreasing rate.
2
0 and b>1
(B) a>0 and 01
(D) a<0 and 0
3.
Consider the sequences of functions fn: [-T, π] → R,
sin(n²x)
n(2)
n
(i) Find a function f : [-T, π] R such that fnf pointwise as
n∞. Further, show that f uniformly on [-T,π] as n→ ∞.
[20 Marks]
(ii) Does the sequence of derivatives f(x) has a pointwise limit on [-7,π]?
Justify your answer.
[10 Marks]
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Definite Integral Calculus Examples, Integration - Basic Introduction, Practice Problems; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=rCWOdfQ3cwQ;License: Standard YouTube License, CC-BY