| Term | Definition |
|---|---|
What is the range of the tangent function? | (-♾️,♾️) |
What is the range of the sine function? | [-1,1] |
On a unit circle, what is sine & cosecant? | x & 1/x (remember: (x, y) = (cos, sin)) |
On a unit circle, what is cosine & secant? | y & 1/y (remember: (x, y) = (cos, sin)) |
On a unit circle, what is tangent & cotangent? | y/x & x/y (remember: (x, y) = (cos, sin)) |
What is the formula for sin (α + β)? | sin α cos β + cos α sin β |
What is the formula for sin (α - β)? | sin α cos β - cos α sin β |
What is the formula for cos (α + β)? | cos α cos β - sin α sin β |
What is the formula for cos (α - β)? | cos α cos β + sin α sin β |
What is the formula for tan (α + β)? | tan α + tan β
_________________
1 - tan α tan β |
What is the formula for tan (α - β)? | tan α + tan β
_________________
1 + tan α tan β |
What is the formula for continuous compounding?
(An unknown/indefinite amount of time) | A = P₀eʳᵗ
AKA: The "Pert" formula
Where:
A = Actual amount
P = Principal amount
r = rate
t = time |
What is the formula for continuous compounding?
(A known amount of time) | A = P ( 1 + r / n )^n t
Where:
A = Actual amount
P = Principal amount
r = rate
n = known time [e.g., "in days" mean n = 365)
t = time |