An arithmetic sequence is created by adding or subtracting a common difference.
Back
Arc functions
Front
Back
Converting radians to degrees and minutes
Front
Multiply by 180 and then divide by pi.
The part before the decimal is the degrees. Multiply the decimal by 60 to find the minutes.
Back
Inverse variation
Front
The inverse variation formula is x one times x two equals y one times y two.
Inverse variation creates a corner hyperbola.
Back
Conterminal Angles
Front
Coterminal angles are just different ways of naming the same angle.
Back
Cosecant
Front
Cosecant equals 1 divided by sine.
Back
Secant
Front
Secant equals 1 divided by cosine.
Back
Complex fractions
Front
Back
Equations with fractions
Front
To solve equations with fraction, find a common denominator.
Drop the denominators
Solve the resulting equation.
Check the answer(s) in the denominators for extraneous roots.
Back
Law of Sines
Front
The law of sines is a divided by sine of A equals b divided by sine of B equals c divided by sine of C.
Back
Trigonometric identity
Front
Cosine squared plus sine squared equals 1.
Back
Absolute value inequalities
Front
To solve absolute value inequalities
Isolate the absolute value on one side of the equation.
Change the inequality sign and the sign(s) of the terms on the right to the opposite signs.
If the original inequality has a greater than or greater than or equal to (≥ or >) sign use or between your solutions.
Solution is <(≤) x or x >(≥) solution.
If the original inequality has a less than or less than or equal to (≤ or <) write as an interval.
Solution <(≤) x <(≤) solution.
You have to divide by a negative, do not forget to flip the inequality sign.
Back
Binomial Expansion
Front
Back
Arc length - radius formula
Front
In a circle the central angle in radians equals the arc length divided by radius.
Back
Function
Front
To be a function
It must pass the vertical line test.
No x coordinate can repeat.
An equation must have a y, but the y cannot be squared.
Back
Quadratic formula (Find the Roots)
Front
the quadratic formula is x equals negative b plus or minus the square root of b squared minus 4 times a times c all over 2 times a.
Back
Geometric sequence
Front
A geometric sequence is created by multiplying or dividing a common ratio.
If the terms alternate between positive and negative, the common ratio is negative.
Back
Absolute value equations
Front
To solve an absolute value equation
Isolate the absolute value on one side of the equation.
Change the sign(s) of the terms on the right to the opposite sign(s).
check your answer(s) for extraneous roots.
Back
Factoring by grouping
Front
Back
Law of cosines given (S.S.S.)
Front
The law of cosines a squared(the side across from the angle) equals b squared plus c squared minus 2 times b times c times the cosine of x (A). Use numerical solve to find the measure of angle A.
Back
Law of cosines given (S.A.S.)
Front
The law of cosines is b squared plus c squared minus 2 times b times c times the cosine of A.
Take the square root of the answer to find the missing side.
Back
Sum and product of roots
Front
The sum of the roots is negative b divided by a.
The product of the roots is c divided by a.
The equation for sum and product of the roots is x squared minus the sum times x plus the product equals 0.
Back
Area of a triangle (need S.A.S.)
Front
Need side angle side (S.A.S) to find area.
The area of a triangle equals ½ times a times b times sine of C.
Back
Factoring out a -1
Front
To factor out a -1, remove the negative and change the signs of the terms
Back
Discriminant (describe the roots)
Front
if the discriminant is 0, the roots are real, rational and equal.
if the discriminant is negative, the roots are complex or imaginary.
if the discriminant is a perfect square, the roots are real, rational, and unequal.
if the discriminant is not a perfect square, the roots are real, irrational, and unequal
Back
Quadrants
Front
All students take classes.
Sine and cosecant are positive in quadrants 1 and 2.
Cosine and secant are positive in quadrants 1 and 4.
Tangent and cotangent are positive in quadrants 1 and 3.
Back
Completing the square
Front
Back
Conjugate
Front
To find the conjugate
The first term stays the same.
Change the sign of the second term.
Back
Permutations with repetition
Front
Back
Circle formula
Front
The circle formula is x minus h squared plus y minus k squared equals the radius squared.
Back
Tangent
Front
Tangent equals sine divided by cosine.
Back
Canceling out opposites
Front
If both terms are opposite signs they can be crossed out and replaced by a negative 1.
Back
Rationalizing the denominator
Front
To rationalize a denominator multiply the numerator (top) and denominator (bottom)
by the conjugate of the denominator (bottom).
Back
Raising a negative number to a power
Front
When raising a negative number to a power always put the negative number in a parenthesis.
Back
Operations with fractions
Front
Back
Convert radians to degrees
Front
To convert from radians to degrees, multiply the radians by 180 and divide by pi.
Back
Degrees and radians
Front
Once around a circle is 2 pi radians or 360 degrees.
½ of the way around a circle is pi radians or 180 degrees.
¼ of the way around a circle is pi divided by 2 or 90 degrees.
Back
Ambiguous Case (0,1,2 triangles?
Front
Back
Sine, Cosine, Tangent on the unit circle
Front
Back
Area of a parallelogram
Front
A parallelogram is made up of 2 congruent triangles.
Back
One to one function
Front
A one to one function must pass the vertical and horizontal line test.
No x or y coordinate can repeat.
Back
Recursive sequences
Front
a to the n minus 1 - look to the term behind.
a to the n plus 1 - loot to the term in front.
Back
Domain, range, inverse
Front
The domain is the x coordinates.
The range is the y coordinates.
To find the inverse switch the x and y coordinates.
Back
Logarithms
Front
Back
Convert degrees to radians
Front
To convert from degrees to radians multiply the degrees by pi and divide by 180.
Back
Cotangent
Front
cotangent equals 1 divided by tangent or
cosine divided by sine.
Back
Factoring ax²+bx+c
Front
Back
Exact values of trigonometric functions
Front
Back
Survey, observational study, experiment
Front
Survey - ask
Observation study - watch
Experiment - change
Back
Vector problems
Front
To solve vector problems remember that
The opposite sides in a parallelogram are congruent.
The consecutive angles in a parallelogram are supplemental (add up to 180 degrees).
Use law of Cosines to find the resultant and the angle between the 2 forces.
Use law of Sines to find the angle between a force and the resultant.
Back
Section 2
(6 cards)
Inverses of exponential and logarithmic equations
Front
...
Back
Converting between logarithm and exponent form
Front
To convert from logarithmic form to exponent form the base remains the base and the rest of the stuff crosses.
the b and the n can never be negative.
Back
Natural Logarithms
Front
Back
Common Logarithms
Front
Back
Square root equations
Front
To solve square root equations
Isolate the square root on one side of the equation.
Square both sides of the equation
Check the answer(s) in the original equation for extraneous roots.