1.8.3 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ =π/9.
Get solution
1.8.3 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ =π/9.
Get solution
1.8.3 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ =π/9.
Get solution
1.8.4 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ = 5.0.
Get solution
1.8.5 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ =−2.0.
Get solution
1.8.6 Use the table or a calculator to find the values of sine and cosine for the following inputs (in radians), and plot them on
a. a graph of sin(θ),
b. a graph of cos(θ),
c. as the coordinates of a point on the circle. θ = 3.2.
Get solution
1.8.7 Convert the following angles from degrees to radians or vice versa. 30?
Get solution
1.8.8 Convert the following angles from degrees to radians or vice versa. 330?
Get solution
1.8.9 Convert the following angles from degrees to radians or vice versa. 1?
Get solution
1.8.10 Convert the following angles from degrees to radians or vice versa. −30?
Get solution
1.8.11 Convert the following angles from degrees to radians or vice versa. 2.0 rad
Get solution
1.8.13 Convert the following angles from degrees to radians or vice versa. −π/5 rad
Get solution
1.8.13 Convert the following angles from degrees to radians or vice versa. −π/5 rad
Get solution
1.8.14 Convert the following angles from degrees to radians or vice versa. 30 rad
Get solution
1.8.15
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. π/2
Get solution
1.8.16
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. 3π/4
Get solution
1.8.17
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. π/9
Get solution
1.8.18
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. 5.0.
Get solution
1.8.19
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. −2.0
Get solution
1.8.20
The other trigonometric functions (tangent, cotangent, secant, and
cosecant) are defined in terms of sin and cos by ... Calculate
the value of each of these functions at the following angles (all in
radians). Plot the points on a graph of each function. 3.2
Get solution
1.8.21 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. ... Only check at points a, c, and d.
Get solution
1.8.22 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. ...
Get solution
1.8.23 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. cos(θ − π)=−cos(θ).
Get solution
1.8.24 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. ...
Get solution
1.8.25 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. ...
Get solution
1.8.26 The following are some of the most important trigonometric identities. Check them at
a. θ = 0,
b. θ = π/4,
c. θ = π/2,
d. θ =π. sin(2θ)= 2 sin(θ) cos(θ).
Get solution
1.8.27 Convert the following sinusoidal oscillations to the standard form and sketch a graph. r ( t ) = 5.0[2.0 + 1.0 cos(2πt)].
Get solution
1.8.28 Convert the following sinusoidal oscillations to the standard form and sketch a graph. g ( t ) = 2.0 + 1.0 sin(t). (Hint: Use Exercise 24.) Exercise 24 ...
Get solution
1.8.29 Convert the following sinusoidal oscillations to the standard form and sketch a graph. f ( t ) = 2.0 − 1.0 cos(t). (Hint: Use Exercise 23.) Exercise 23 cos(θ − π)=−cos(θ).
Get solution
1.8.30 Convert the following sinusoidal oscillations to the standard form and sketch a graph. h ( t ) = 2.0 + 1.0 cos(2πt − 3.0).
Get solution
1.8.32 Find the average, minimum, maximum, amplitude, period, and phase from the graphs of the following oscillations ...
Get solution
1.8.32 Find the average, minimum, maximum, amplitude, period, and phase from the graphs of the following oscillations ...
Get solution
1.8.34 Find the average, minimum, maximum, amplitude, period, and phase from the graphs of the following oscillations ...
Get solution
1.8.34 Find the average, minimum, maximum, amplitude, period, and phase from the graphs of the following oscillations ...
Get solution
1.8.35 Graph
the following functions. Give the average, maximum, minimum, amplitude,
period, and phase of each and mark them on your graph. ...
Get solution
1.8.36 Graph
the following functions. Give the average, maximum, minimum, amplitude,
period, and phase of each and mark them on your graph. g ( t ) = 4.0 + 3.0 cos[2π(t − 5.0)].
Get solution
1.8.37 Graph
the following functions. Give the average, maximum, minimum, amplitude,
period, and phase of each and mark them on your graph. ...
Get solution
1.8.38 Graph
the following functions. Give the average, maximum, minimum, amplitude,
period, and phase of each and mark them on your graph. ...
Get solution
1.8.39 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. f ( t )=1 + t + cos(2πt) for 0<t <4.
Get solution
1.8.40 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. h ( t )=t + 0.2 sin(2πt) for 0<t <4.
Get solution
1.8.41 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. ...
Get solution
1.8.42 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. ...
Get solution
1.8.43 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. ...
Get solution
1.8.44 Oscillations
are often combined with growth or decay. Plot graphs of the following
functions, and describe in words what you see. Make up a biological
process that might have produced the result. ...
Get solution
1.8.45
Sleepiness
has two cycles, a circadian rhythm with a period of approximately 24
hours and an ultradian rhythm with a period of approximately 4 hours.
Both have phase 0 (starting at midnight) and average 0, but the
amplitude of the circadian rhythm is 1.0 sleepiness unit and the
ultradian is 0.4 sleepiness unit. Find the formula and sketch the graph
of sleepiness over the course of a day due to the circadian rhythm.
Get solution
1.8.46
Sleepiness
has two cycles, a circadian rhythm with a period of approximately 24
hours and an ultradian rhythm with a period of approximately 4 hours.
Both have phase 0 (starting at midnight) and average 0, but the
amplitude of the circadian rhythm is 1.0 sleepiness unit and the
ultradian is 0.4 sleepiness unit. Find the formula and sketch the graph
of sleepiness over the course of a day due to the ultradian rhythm.
Get solution
1.8.47 Sleepiness
has two cycles, a circadian rhythm with a period of approximately 24
hours and an ultradian rhythm with a period of approximately 4 hours.
Both have phase 0 (starting at midnight) and average 0, but the
amplitude of the circadian rhythm is 1.0 sleepiness unit and the
ultradian is 0.4 sleepiness unit. Sketch the graph of the two cycles combined.
Get solution
1.8.48 Sleepiness
has two cycles, a circadian rhythm with a period of approximately 24
hours and an ultradian rhythm with a period of approximately 4 hours.
Both have phase 0 (starting at midnight) and average 0, but the
amplitude of the circadian rhythm is 1.0 sleepiness unit and the
ultradian is 0.4 sleepiness unit. At what time of day are you sleepiest? At what time of day are you least sleepy?
Get solution
1.8.49 Consider the following functions. ...
a. Plot them all on one graph.
b. Plot the sum ...
c. Plot the sum ...
d. Plot the sum ...
e. What does this sum look like?
f. Try to guess the pattern, and add on ...
This is an example of a Fourier series, a sum of cosine functions that
add up to a square wave that jumps between values of −1 and 1.
Get solution
1.8.50 Use
a computer to cobweb and graph solutions of the following discrete-time
dynamical systems. Try three different initial conditions for each. Can
you make any sense of what happens? Why don’t the solutions follow a
sinusoidal oscillation? ...
Get solution
1.8.51 Plot the function f (x)=cos(2π · 440x) + cos(2π · 441x).
Describe the result. If these were sounds, what might you hear? (This
corresponds to playing two notes with the same amplitude and slightly
different frequencies.)
Get solution
1.8.51 Plot the function f (x)=cos(2π · 440x) + cos(2π · 441x).
Describe the result. If these were sounds, what might you hear? (This
corresponds to playing two notes with the same amplitude and slightly
different frequencies.)
Get solution