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trigonometric function special triangle cotangent secant
cosecant
51. Convert
from radians to degrees.
52. Use the special right triangle to find the exact value
of the trigonometric function cos 30 .
41. Multiply
. Assume that all expressions
are defined.
42. Divide
53. Use a reference angle to find the value of sin 300º.
54. A 35-foot telephone pole casts a 46-foot shadow on
the ground while the sun is shining. To the nearest
degree, what is the angle of elevation of the sun
from the end of the shadow? (draw a picture first)
. Assume that all expressions are
defined.
43. Solve the equation
.
44. Simplify the expression
variables are positive.
55. Solve the equation
Use the restrictions
to the nearest tenth.
.
. Assume that all
45. Find the value of the sine, cosine, and tangent functions
for where
,
, and
.
56. Tell whether the function
shows growth
or decay. Then graph the function.
57. Use inverse operations to write the inverse of
1
.
7
58. Write the exponential equation
logarithmic form.
C
B

in
59. Write the logarithmic equation
exponential from.
A
in
60. Evaluate log 2 5using mental math.
46. Use a trigonometric function to find the value of x.
, –2, 0, 1, 2 to graph the function
. Then graph its inverse. Describe the
domain and range of the inverse function.
61. Use
45º
x
50
62. Express
Simplify, if possible.
as a single logarithm.
63. Express
as a single logarithm.
Simplify, if possible.
47. After takeoff from an airport, an airplane’s angle of
ascent is 10 . The airplane climbs to an altitude of
10,000 feet. At that point, what is the land distance
between the airplane and the airport? Round your
answer to the nearest foot.
64. Express log 8-3 as a product. Simplify, if possible.
2
65. Simplify the expression log2 64
66. Evaluate log3 243.
48. Find the values of the six trigonometric
functions for 

68. Simplify the expression: (-3b)2(b2c)5
69.For the f(x) = -3x + 4, evaluate f(2).
14
48

c
49. Draw an angle with
67. Simplify the expression (3)-1(4)0
in standard position.
50. Find the measure of the reference angle for
.