WAKE F OREST U NIVERSITY FALL 2017: D R . D ALZELL
Problem Set 4
Due: September 28th
September 22, 2017
1 N OTES ON ANSWERING
Some questions on this Problem Set, like 2.14(c) want you to perform a hypothesis test. For
this problem set, I want you to answe
1. Use the limit denition of a derivative to find f(:1:) if f(:n) = -:t: + 2.
\im RICK-3 " QCK )
KW ._ - 5< Z
MaOC Gwyn) C + > QCU=-X+2
\_ E on = -\"
M "\-\n 1-1 +\ 3X
\Im _\ ._ i_\)
FINAL REVIEW: Chapter 3
Critical Number: For a function f , the critical number, c is where f 0 (c) = 0 or f 0 (c) does not exist.
Critical numbers are where local maximum and local minimum occur.
NOTE: A local max or local min doesnt occur at every criti
FINAL REVIEW: Chapter 2
Definition Let f (x) be a function. The tangent line to the curve y = f (x) at the point (a, f (a) at is the
line through (a, f (a) with slope
f (a + h) f (a)
m = lim
provided the limit exists.
Definition Let f be a function.
Sean Fentress Hill
18 November 2016
Part 1: Researching Newtons Method
Newtons method allows me to approximate the root of the function [f (x) = 0]. Every
time I reckon the tangent line of my approximate value, I get arbitr
Practice Test 2
1. Find the derivatives of the following functions:
(i) p(x) = 8x5 + 4x4 x3/2
(ii) f (x) = sin x tan x
(iii) f (x) =
x2 + 4
(iv) h(t) = sec2 t3
(v) g(x) =
(vi) g(t) = sin(cos x)
2. For the equation below, find
List Of Theorems and Some Definitions
Theorem: Suppose that c is a constant and that the limits
lim f (x)
1. lim (f (x) + g(x) = lim f (x) + lim g(x)
2. lim (f (x) g(x) = lim f (x) lim g(x)
3. lim cf (x) =
Practice Test 2 Answers
1. (i) p0 (x) = 40x4 + 16x3
(ii) f 0 (x) = sec2 x sin x cos x tan x
(iii) f 0 (x) = p
(iv) h0 (t) = 6t2 sec2 (t3 ) tan(t3 )
(v) g 0 (x) = p
4 x x+ x
(vi) g 0 (x) = sin x cos(cos x)
FINAL REVIEW: Chapter 1
The final exam is cumulative and counts for 25% of your grade. It is scheduled for December
16th. Please remember to bring your IDs.
8 am class: Meet in Kirby Hall 101. Final starts at 9 am (until noon)
9 am class: Meet in Kirby Ha
Savita and Shama were going to market to buy some stationary items.
Savita said, I have 5 rupees and 75 paise. Shama said, I have 7 rupees
and 50 paise.
They knew how to write rupees and paise using decimals.
Whats the good of Mercators North Poles and Equators, Tropics, Zones and
Meridian Lines? So the Bellman would cry; and crew would reply They are
merely conventional signs!
Our study so far has been with numbers and shapes. We have learnt numbers,
operations on numbers and properties of numbers. We applied our knowledge
of numbers to various problems in our life. The branch of mathematics
Geometry has a long and rich history. The term Geometry is the English
equivalent of the Greek word Geometron. Geo means Earth and metron
means Measurement. According to
historians, the geometrical ideas
Symmetry is quite a common term used in day to day life. When we see
certain figures with evenly balanced proportions, we say, They are
Thiruvannamalai (Tamil Nadu)
These pictures of archi
You must have observed your teacher recording the attendance of students in
your class everyday, or recording marks obtained by you after every test or
examination. Similarly, you must have also seen a cricket scor
Sunitas mother has 8 bananas. Sunita has to
go for a picnic with her friends. She wants to
carry 10 bananas with her. Can her mother
give 10 bananas to her? She does not have
enough, so she borrows 2 bananas from her
In earlier chapters, the diagrams, which were necessary to prove a theorem or solving
exercises were not necessarily precise. They were drawn only to give you
The Triangle and
A triangle, you have seen, is a simple closed curve made of three line
segments. It has three vertices, three sides and three angles.
Here is ABC (Fig 6.1). It has
AB , BC , CA
You are familiar with a number of shapes. You learnt how to draw some of them in the earlier
classes. For example, you can draw a line segment of given length, a line perpendicular to a
given line segment, an angle, an
You have studied about triangles and their various properties in your earlier classes.
You know that a closed figure formed by three intersecting lines is called a triangle.
You already know how to identify different lines, line segments and angles in a given
shape. Can you identify the different line segments and angles formed in the following
figures? (Fig 5.1)
LINES AND AN
Exponents and Powers
Do you know?
Mass of earth is 5,970,000,000,000, 000, 000, 000, 000 kg. We have
already learnt in earlier class how to write such large numbers more
conveniently using exponents, a
As we know, we use 1, 2, 3, 4,. when we begin to count. They come naturally
when we start counting. Hence, mathematicians call the counting numbers as
Predecessor and successor
Given any natural nu
You are now ready to learn a very important geometrical idea, Congruence. In particular,
you will study a lot about congruence of triangles.
To understand what congruence is, we turn to some activities.
When we talk about some plane figures as shown below we think of their
regions and their boundaries. We need some measures to compare them. We
look into these now.
Look at the following figures (Fig.