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Duplicate of Pre-Calculus: Functions, Transformations, Trigonometry, Part One Flashcards | StudBud
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Duplicate of Pre-Calculus: Functions, Transformations, Trigonometry, Part One
Duplicate of Pre-Calculus: Functions, Transformations, Trigonometry, Part One
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1
Find the cosine of 30 degrees or pi/6 radians.
-1
1/2
1/2(square root of 3)
0
2
In y=-2(x-4)
2
+8, what effect does the - sign have on the parent graph y = x
2
?
Compresses the graph vertically
Reflects the graph ove the y-axis
Moves down the vertical axis.
Reflects the graph over the x-axis
3
What is needed to solve for angle B?
cannot solve
18m and 26m into the law of cosines
18m and 24m into the law of cosines
26m and 24m into the law of sines
4
What is the parent graph of y= - 2x +5
y=-1
y=-2x
y=5
y=x
5
How would you solve for the length of segment AB?
square root (322+792 -2(32)79cos45o)
cannot be solved
AB/sin45o =32/sin79o
180o-(70o+32o)
6
Suppose angle C is a right angle, how would you find the measure of angle A?
A=cos-1(4/3)
A=cos-1(3/4)
A=tan-1(4/3)
A=sin-1(3/4)
7
The hypotenuse is 8 cm, one leg is 6 cm, what is the measure of its other leg?
2(square root of 7)
28
cannot be solved
10
8
If Cos B = -1/2, find the measure of angle B.
3*pi/4 radians or 5*pi/4 radians
2*pi/3 or5 4*pi/3 radians
0 radians only
5*pi/6 radians or 7*pi/6 radians
9
Find the area of triangle ABC.
Area=1/2(13)(22)
Area=1/2(13)(22)cos37o
Area=13(22)/sin37o
Area =1/2(13)(22)sin37o
10
If sin B=0.58 then how do you solve for angle B if it is not from a special right triangle?
1/0.58
B=sin-1(0.58)
cannot be solved
0.58/sinB
11
Find the cosine of 90 degrees
0
1/2
-1
1
