Whats the conversion for degrees to radians
(deg) * (π / 180)
Conversion for radians to degrees
(rad) * (180 / π)
Whats the sin equivalent for csc
1 / sinθ
whats the cos equivalent for sec
1 / cosθ
whats the cos/sin equivalent for cot
cosθ / sinθ
Whats the domain/range/period of a csc function
D = R, x ≠ kπ (k = int)
R = (- ∞, -1] U [1, ∞)
p = 2π
Whats the domain/range/period of a sec function
D = R, x ≠ kπ / 2 (k = odd int)
R = (- ∞, -1] U [1, ∞)
p = 2π
Whats the domain/range/period of a cot function
D = R, x ≠ kπ (k = int)
R = R
p = π
what is the equation for tan
sinθ / cosθ
Whats the domain/range of an arc sin / sin^-1 function
D = [-1, 1]
R = [-π/2, π/2]
Whats the domain/range of an arc cos / cos^-1 function
D = [-1, 1]
R = [0, π]
Whats the domain/range of an arc tan / tan^-1 function
D = (-∞, ∞)
R = (-π/2, π/2)
Whats the range of sin^-1(sin(x)) = x
-π/2 ≤ x ≤ π/2
Whats the range of sin(sin^-1(x)) = x
-1 ≤ x ≤ 1
do the sin’s cancel in: sin(sin^-1(x)) = x
yes
Whats the range of cos^-1(cos(x)) = x
0 ≤ x ≤ π
Whats the range of cos(cos^-1(x)) = x
-1 ≤ x ≤ 1
Whats the range of tan(tan^-1(x)) = x
-π/2 < x < π/2
Whats the range of tan^-1(tan(x)) = x
-∞ ≤ x ≤ ∞
On the unit circle, which portion does cos take up
The top half
On the unit circle, which portion does sin take up
The right half
On the unit circle, which portion does tan take up
The top half and right half
Is tan^2θ =(tanθ)^2
Yes
Is θ = π/4 a solution for 2sinθ - 1 = 0
2sin(π/4) - 1 = 0;
sin(π/4) = 1/2;
√2 / 2 ≠ 1/2;
No
