Pre-AP Pre-Calculus
7π
3
-1
37.
csc
csc
34.
arccos
6
2
1
1
tan
3
38.
35.
sin
cos
3
3
8
36.
arcsin
39.
sin arccos
2
17
CALCULATOR – Round all answers to 0.001.
– L
T
T
S
/C
V
RIANGLE
RIG
AW OF
INES
OSINES AND
ECTORS
Given ∆ABC with mA = 25º , b = 10, and c = 12. Find a.
40.
Given ∆ABC with mA = 33º , b = 7, and c = 15. Find area.
41.
Given ∆ABC with mA = 40º , b = 8, and c = 10. Find perimeter.
42.
Given the following measures, = 33; = 79; b = 7, would you solve this triangle
43.
using the law of sines or law of cosines? Why?
44.
In preparation for an outdoor rock concert, a stage crew must determine how far apart to
place the two large speaker columns on stage. What generally works best is to place
them at 50 angles to the center of the front row. The distance from the center of the
front row to each of the speakers is 10 ft. How far apart does the crew need to place the
speakers on stage?
45.
Two airplanes leave an airport at the same time. The first flies north at 175 km/h, and the
second plane flies southeast at 220 km/h. After 2 hours, how far apart are the planes?
46.
Two vectors, a and b , have magnitudes of 10 and 15 respectively. The angle between
, and the angle this difference makes with a .
them is 50º. Find a b
, and the angle this difference makes with a .
Find a b
47.
An object moves 12 meters along a bearing of 90º and then turns and moves 18 more
meters along a bearing of 150º. Find the resultant of these two displacement vectors as a
distance.
48.
Resolve the vector into horizontal and vertical components.
8
240º