Trig basic
name of main 3 trig functions?
Sine, cosine, and tangent
1/2 (a)(b)Sin C
pi is equivalent to what in degree?
180
what quarter 300 in?
Q 4
What is angle of elevation ?
a line of the sight of the observer
Sin is equal to
the side opposite the angle that you are conducting the functions on over the hypotenuse
What is law of sign ratio ?
Sin A/ a = Sin B / b = Sin C /c
60 to radiance ?
pi/ 3
sin a = 7/4 and cos < 0 what quarter a in?
Q 2
Mrs.B standing 150 meters away from Springfield Town Center :) she looks with an angle of elevation 36.How tall Springfield Town Center
109
Use Pythagorean theorem to find side b, if side a = 5 and c = 13, C is right angle
12
Find the area, if a = 10, b = 14, C = 40
45
-5p/4 to degree
-225
tan b = - 5/9, sin b < 0 , find cos b
9 square root 106/ 106
Determine whether each triangle should be solved by the Law of Sines or the Law of Cosines.
Then solve each triangle. Round side lengths to the nearest tenth and angle measures to the nearest degree.
(Check whether there are two solutions)
A = 78, a=8, b=5
solve triangle! A = 72, c = 10, C is right angle
B = 18
a =9.5
b = 3.1
Find area? B = 75, A =37, c = 22
151.73
Find a positive and a negative coterminal angle for:
240
-120
600
FIND all 6 trig:
Sin 4/5, Q 2
Csc = 5/4
cos = - 3/5
sec = - 5/3
Tan = - 4/3
cot = - 3/4
Two boats leave a dock at the same time in different directions. One sails on a Tearing
of N 50o E at 25 mph. The other boat sails on a bearing of S 22o E at 33 mph. How far apart will the
boats be after 3 hours
141.5
If , sin b = 5/8, find the five remaining trig functions for B.
Csc = 8/5
Cos = Square root 39/ 8
Sec = 8 square root 39 / 39
Tan = 5 square root 39 / 39
cot = square root 39 / 39
solve triangle. a = 18, c = 9, b = 10
A= 143
B= 20
C =18
find reference and a positive coterminal for
pi/6
reference: pi/6
coterminal: 13pi/6
csc = -square root 2 and tan > 0 find cos
- square 2 / 2
A plane proceeds on a course of W 50o N for 2.5 hours at 160 mph. lt then changes
direction to S 25oW continuing for 3 more hours at 182 mph. At this time, how far is the plane irom
its stafting point?
523