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Algebra 2 Trigonometry Formulas
Formulas that need to be memorized
30
Mathematics
11th Grade
05/27/2011
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Term
Quadratic Formula
 Definition
[image]
Term
Angle-Arc-Radius Formula
 Definition
S = θr
Term
1 - sin2θ
 Definition
cos2θ
Term
1 - cos2θ
 Definition
sin2θ
Term
Sum of the roots
 Definition
[image]
Term
Product of the roots
 Definition
[image]
Term
tan θ
 Definition
[image]
Term
cot θ
 Definition
[image]
Term
sec θ
 Definition
[image]
Term
Nature of the roots when b2 - 4ac is a positive, perfect square
 Definition
real, rational, unequal
Term
Nature of the roots when b2 - 4ac is a positive, non-perfect square
 Definition
real, irrational, unequal
Term
Nature of the roots when b2 - 4ac is zero
 Definition
real, rational, equal
Term
Nature of the roots when b2 - 4ac is negative
 Definition
imaginary
Term
Exact value of 0.8660...
 Definition
[image]
Term
Exact value of 0.5773...
 Definition
[image]
Term
Exact value of 0.7071...
 Definition
[image]
Term
Exact value of 1.732...
 Definition
[image]
Term

Conjugate of a binomial

 

(a+b)

 Definition

Switch the sign in the middle

 

(a-b)
Term
log a + log b
 Definition
log (ab)
Term
log a - log b
 Definition
log (a/b)
Term
log ac
 Definition
c log a
Term
Amplitude of y = a sin bx
 Definition
|a|
Term
Period of y = a sin bx
 Definition
(2π)/b or (360°)/b
Term
Frequency of y = a sin bx
 Definition
b
Term
Population Standard Deviation
 Definition
σx
Term
Sample Standard Deviation
 Definition
Sx
Term
Variance
 Definition
(Standard Deviation)2
Term
Domain
 Definition
All possible x values
Term
Range
 Definition
All possible y values
Term
[image]
 Definition
[image]
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