lesson 1

Question 1

ordered set of numbers formed according to some pattern or rule.
- functions whose domain is the set of positive integers or the set {1, 2,3, …, n}.

Answer 1

Sequence

Question 2

what you get when you add up all the terms of a sequence

Answer 2

Series

Question 3

what you get when you add up all the terms of a sequence; and theresulting value, are called the

Answer 3

sum or the summation

Question 4

sum of the terms of a sequence and is denoted by

Answer 4

Sn

Question 5

sum of the terms of a sequence and is denoted by Sn where n presents the

Answer 5

number of terms.

Question 6

Set of elements that follow a
pattern
Order of elements is important

Answer 6

Sequence

Question 7

Sum of elements of the sequence
* Order of elements is notimportant

Answer 7

Series

Question 8

is the sum of the first n terms of a sequence. It is also referred to as the nth partial sum of a sequence.

Answer 8

Finite series

Question 9

is the sum of all the terms of an infinite sequence.

Answer 9

An infinite series

Question 10

each term after the first is obtained by adding a constant (called thecommon difference) to the preceding term.

Answer 10

Arithmetic sequence

Question 11

an arithmetic series is the sum of an arithmetic sequence.

Answer 11

Arithmetic Series

Question 12

sequence in which each term after the first is obtained by multiplyingthe preceding term by a constant (called the common ratio).

Answer 12

Geometric Sequence

Question 13

results from adding the terms of a geometric sequence

Answer 13

Geometric Series

Question 14

Sequence of real numbers which is determined by taking thereciprocals of the arithmetic progression that does not contain 0.

Answer 14

Harminic Sequence

Question 15

This is a number sequence whose terms are equal to the sum of thetwo previous terms

Answer 15

Fibonacci sequence

Question 16

Technique that brings faraway terms(like the nth term) close to the first term,just like a telescope.

Answer 16

TELESCOPING SUM PROPERTY

Question 17

The summations must begin with_______ in order to use the given formulas

Answer 17

i = 1

Question 18

A circle where the center is found at the origin of the rectangular coordinate system and the radius is equal to 1 unit.

Answer 18

Unit circle

Question 19

Similarly, if the point terminates atthe point where it started, then thelength of the arc is

Answer 19

2pi units or 360

Question 20

An angle is said to be in ___________when it is drawn in the
rectangular coordinate system with its
vertex at the origin and its initial side
coincides with the positive x-axis.

Answer 20

standard
position

Question 21

The _____ of an angle is the ray
where the measurement of an angle
starts.

Answer 21

initial side

Question 22

The _______ of an angle is the ray
where the measurement of an angle
ends.

Answer 22

terminal side

Question 23

Two angles in the standard position that have the same terminal side are called

Answer 23

coterminal angles

Question 24

are functions
whose domain and range
correspond to the measures of
angles with respect to the
trigonometric functions.

Answer 24

Circular functions

Question 25

Commonly known as trigonometric functionsbecause the radian measures of the angles arecalculated by the length and coordinates of theterminal point of the arc on the unit circle.

Answer 25

Circular function

Question 26

acute angle formed by the
terminal side of a given
angle in the standard
position and the x-axis.

Answer 26

REFERENCE
ANGLE

Question 27

The reference angle is always made
__________ whichever quadrant and what
direction (counterclockwise and
clockwise) is the given angle.

Answer 27

positive

Question 28

CONDITIONAL EQUATION

Answer 28

Statement that is true on condition that the variable is replaced with the correct value.