Unit Circle
radian measure for 30 degrees
What is
pi/6
{2x-y =5,x + 4y =7}
What is x = 3 and y =1
Cos (2pi)/3
- 1/2
a^2+b^2=c^2
What is Pythagorean theorem?
Opposite/Hypotenuse
What is Sine Theta?
Reference angle for (11pi)/6
What is
pi/6
{8x,-2y, =5 , -12x + 3y =7}
What is no solution
tan (-pi)/3
(-sqrt3)
Formula for a parabola with focus f(0, 2)
x^2 = 8y
Opposite/Adjacent
What is Tangent Theta?
Terminal point for (5pi)/2
What is (0,1)
{3x-6y =12, 4x - 8y =16}
What is Infinity many solutions.
sin (19pi)/4
(sqrt2)/2
Formula for a Ellipse with vertices at (+-3,0)
and Foci at ( (sqrt5, 0)
What is x
(x^2)/9 + (y^2)/4 = 1
Adjacent/Hypotenuse
What is Cosine Theta?
Y value when 3/5 is the X value of a terminal point on the unit circle in Quad IV.
What is -4/5
x - 2y + 3z = 1
x + 2y - z = 13
3x + 2y - 5z = 3
What is x = 3, y = 7, z = 4
Find tan t for terminal point
(-6/7, (sqrt13)/7)
.
-sqrt13/6
Formula for an ellipse with length of major axis 4, length of minor axis 2, foci on x-axis.
What is
x^2 + (y^2)/4 = 1
Hypotenuse/Opposite
What is Cosecant Theta?
(3pi)/4 in degrees
What is 135 degrees?
The sum of two numbers is twice their difference. The larger number is 6 more than twice the smaller. Find the numbers.
What is 6 & 18
The quadrant in which t lies when
sin t lt 0 and cos t gt 0
What is IV quadrant
Vertices, foci and asymptotes for 9x^2 - 16y^2 = 144 r 9x
Vertices (4,0) Foci (5,0)
Asymptotes y = 3/4 x
Adjacent/Opposite
What is Cotangent Theta?