Graphical Reasoning Use the formulas for the area of a circular sector and arc length given in Section 1.1. (a) For θ = 0.8 , write the area and arc length as functions of r . What is the domain of each function? Use a graphing utility to graph the functions. Use the graphs to determine which function changes more rapidly as r increases. Explain. (b) For r = 10 centimeters, write the area and arc length as functions of θ . What is the domain of each function? Use the graphing utility to graph the functions.
Graphical Reasoning Use the formulas for the area of a circular sector and arc length given in Section 1.1. (a) For θ = 0.8 , write the area and arc length as functions of r . What is the domain of each function? Use a graphing utility to graph the functions. Use the graphs to determine which function changes more rapidly as r increases. Explain. (b) For r = 10 centimeters, write the area and arc length as functions of θ . What is the domain of each function? Use the graphing utility to graph the functions.
Solution Summary: The author calculates the area function and the arc length function as r, and determines which function changes more rapidly.
Graphical Reasoning Use the formulas for the area of a circular sector and arc length given in Section
1.1.
(a) For
θ
=
0.8
,
write the area and arc length as functions of
r
. What is the domain of each function? Use a graphing utility to graph the functions. Use the graphs to determine which function changes more rapidly as
r
increases. Explain.
(b) For
r
=
10
centimeters, write the area and arc length as functions of
θ
.
What is the domain of each function? Use the graphing utility to graph the functions.
Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.
7. From a point 20 m away on a level ground, the angle of elevation to the bottom of a
the top of the window is 32°. Calculate the
window is 27° and the angle of elevatim
height of the window.
(3 marks)
32
SOUCAHTOA
Rom
Coso-Adj
opponite
1270
H
X
Hyp
Tant=OPP
Adj
20 #
Zom
Adjacent
CoS2E 20 XHX Tanz 20
20
K
-0.0445503261 -1.764201788
0-044550326 60044550320
(1 mark) 3960
8. All odd numbers from 1 to 10 are arranged in descending order to form a number.
(i) Write the number.
35798.
97531
31
(ii) Write the total value of the second digit of the number formed in (a) (i)
FA 7X1000-7000
이
(1 mark)
9. A cylinder has a diameter of 28 cm and the height is 18 cm. Calculate its volume.
2
22 × 14 × 14 × 18
-110880m
3
(3 marks)
10. The figure below shows a right pyramid with AB = 3 cm, BC = 5 cm, and AV
VC = VD = 4 cm. Draw its net.
V
3+
12
7/18
(2/20
2105
SSS
20
Find the exact values of sin(2u), cos(2u), and tan(2u) given
2
COS u
where д < u < π.
2
Chapter 1 Solutions
WebAssign Printed Access Card for Larson's Trigonometry, 10th Edition, Single-Term
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Area Between The Curve Problem No 1 - Applications Of Definite Integration - Diploma Maths II; Author: Ekeeda;https://www.youtube.com/watch?v=q3ZU0GnGaxA;License: Standard YouTube License, CC-BY