Unit Circle
None
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AGAIN?!
SMH
Now this was just plain dumb
...
20*, 160*, 200*, 340*, are all examples of what?
Reference Angles
Convert 427.5 degrees into radians
19pi/8
Find sin, cos, tan, or 35* (round to nearest hundredth.)
Sin(35)=0.57, Cos(35)=0.82, Tan(35)=0.70
A ship leaves an island and goes 15 miles west. Then it stops and travels 20 miles south. What bearing should the boat take to directly return back to the island?
N36.87*E
Potato
chips
Find all 6 trig functions for 30*
cos=(sqrt3/2), sin=(1/2), tan=(sqrt3/3), sec=(2sqrt3/3), csc=2, cot=(sqrt3)
All reference angles of 32* between 0*-720*
32*,148*,212*,328*,392*,508*,572*,688*
Find the tan of (15pi/4)
1
A car leaves city B at a bearing of N20*E and goes straight for 200mi. How many miles did he travel north and east?
North: 196.96 mi
East: 34.73 mi
Russo
Diet
Using the unit circle, find the value of the cosine of an unknown angle x, given that y= -7/25
cos(x)=+/- (24/25)
Find Sin, Cos, Tan of a triangle with coordinates being (-4,7)
Sin=(7 sqrt65/65), Cos=(-4sqrt65/65),
Tan=(-7/4)
Using the unit circle find cos, tan, and sin of the triangle formed from (sqrt2/2, sqrt2/2) to the x-axis, if the opposite side is 5, and the hypotenuse is 10. Keep values exact.
Cos45=sqrt75/10
Tan45=5sqrt75/75
Two ships leave a port at the same time. The first ship sails at a bearing of E32*N, at 16 knots. The second ship sails at a bearing of N32*W, at 24 knots. How far apart are the ships, if they have been traveling for 2.5 hours?
72.26mi
Time to
Make weight
(No notes, or unit circle)
A point is in Quadrant-III and on the Unit Circle. If its x-coordinate is -4 / 5, what is the y-coordinate of the point?
y-coordinate=-3 / 5
AC is a diameter of the circle D. The radius of the circle D is 30ft. The arc length of BC is 13pi.
What is the arc measure of AB in radians?
Arc measure of AB is 17pi/30
Solve the trigonometric equation given by
(2sin(x) - 1)(tan(x) - 1) = 0 for 0 ≤ x ≤ 2 pi
x = pi/6, 5pi/6, x = pi/4 and x = 5pi/4
Two ships leave a port at the same time. The first ship sails at a bearing of E32*N, at 16 knots. The second ship sails at a bearing of N32*W, at 24 knots. How far apart are the ships, if they have been traveling for 2.5 hours?
52.76mi
W57.89*N
Sectionals
2/15/20 #sumlight