Pre calculus Achievement Review

Sequence

is an ordered list of numbers.

Term

is called to each number of a sequence

2 Groups of Sequence

Finite and Infinite

Finite Sequence

contains a finite number of terms.

Infinite Sequence .

contains an infinite number of terms.

Series

is the indicated sum of the terms of a sequence.

General Term of Sequence

(an)

(Σ)

Sigma Notation or Summation Symbol

Sequence Formula

an=a1+(n-1)d

Series Formula

Pascal's Triangle

is a triangular array of numbers formed by first lining the border with 1's and then placing the sum of the two adjacent numbers within a row between and underneath the two original numbers.

Halayudha

The earliest known version of Pascal's Triangle was developed between 300 and 200 B.C. Indian mathematician

Blaise Pascal (1623-1662)

a French mathematician.Pascal is credited because he took the information and organized it to where it made sense and was useful.

Combination Formula

Formula rth term of Binomial Expansion

Central Angle

an angle whose vertex is at the center of the circle and whose sides intersect the circle

θ

The measure of the Central Angle

S

arc length

R

radius of circle O

C

2(pi)r

2(pi)r

360 Degrees

Degree to Radian

π/180

Radian to Degree

180/π