Sine
What is the sine of an angle equal to?
sinθ=(opposite/hypotenuse)
What is the cosine of an angle equal to?
cosθ=(adjacent/hypotenuse)
What is the tangent of an angle equal to?
tanθ=(opposite/adjacent)
How many degrees are in the unit circle?
360 degrees.
What is the the sec(x) if csc(x) = square root of 3 and cos<0 ?
A negative square root of 6 over 2.
What quadrants could the angle fall in if the sine is equal to one half?
Quadrants 1 and 2.
What quadrants could the angle fall in if the cosine is equal to one half?
Quadrants 1 and 4.
What is the tangent of 60 degrees on the unit circle?
√3.
What are the coordinates at 90 degrees on the unit circle?
(0. 1).
Find the coordinates of point P after rotation of 150° around the circle with radius of 6 units.
x = -3 times square root of 3.
y = 3
What quadrants could the angle - 7pi/4 fall ?
Quadrants 1.
What quadrants could the angle fall in on the unit circle if the cosine is equal to the negative square root of 2 divided by 2?
Quadrants 2 and 3.
What is the tangent of 225 degrees on the unit circle?
1.
What are the coordinates at -90 degrees on the unit circle?
(0. -1).
Find the coordinates of point P for the circle with the radius of 3 cm and angle of 4pi/3
(-1.5, -1.5 times square root of 3).
Does the sine affect the x or y value in the coordinate on the unit circle?
y-value.
Does the cosine affect the x or y value of the coordinate in the unit circle?
x-value.
What is the tangent of 120 degrees?
-√3.
What is the radius of the unit circle?
1.
If cos(x) = 7/25 and tan(x) < 0, what is the value of of csc(x)?
-25/24.
What quadrants are cosecant positive in?
Quadrants 1 and 2.
What quadrants are cosine positive in?
Quadrants 1 and 4.
What quadrants are tangent positive in?
Quadrants 1 and 3.
Which direction does positive degrees move in on the unit circle?
Counter-clockwise.
Find the exact value of the cot (-5pi/3)?
square root of 3/3