Card 1: side 1

Definition of set of rational numbers:

Card 1: side 2

Q = {x: x = p/q, and p, q Î Z, q ¹ 0}

Card 2: side 1

Decimal properties of rational and irrational #s

Card 2: side 2

If a number is rational, its decimal is terminating or repeating.

If a decimal is non-terminating and non-repeating, the number is irrational.

Card 3: side 1
Without negative exponents:

b^-x =

Card 3: side 2
With negative exponents:

b^x =

Card 4: side 1
Without negative exponents:

Card 4: side 2
With negative exponents:

Card 5: side 1
special products

a³ - b³ =

a³ + b³ =

Card 5: side 2
special factors

(a - b)(a² + ab + b²) =

(a + b)(a² - ab + b²) =

Card 6: side 1
special products

a² + 2ab + b² =
a² - 2ab + b² =
a² - b² =

Card 6: side 2
special factors

(a + b)² =
(a - b)² =
(a + b)(a - b) =

Card 7: side 1
Quadratic formula

Solution for ax² + bx + c = 0

Card 7: side 2
Quadratic formula

Card 8: side 1
Sum and product of roots of ax² + bx + c = 0

r₁ + r₂  =
r₁ · r₂ =

Card 8: side 2
Sum and product of roots of ax² + bx + c = 0

-b/a  =
c/a =

Card 9: side 1

   Equation of circle, center (h, k), radius = r
   Equation of circle, center at origin, radius = r
  

Card 9: side 2

        (x - h)² + (y - k)² = r²
        x² + y² = r²
       

Card 10: side 1

   Formula for radian measure
in terms of q, r, and s

                     Card 10: side 2

                          | q | = s/r
       

Card 11: side 1

   Two equations of unit circle, center at origin

                     Card 11: side 2

         1.  x² + y² = 1
         2.  sin²q + cos²q = 1

Card 12: side 1

  The Quotient Identities

                     Card 12: side 2

         1.  tanq = sinq / cosq
         2.  cotq = cosq / sinq

Card 13: side 1

  The three Pythagorean Identities

                     Card 13: side 2

         1.  sin²q + cos²q = 1
         2.  tan²q + 1 = sec²q
         3.  cot²q + 1 = csc²q