Chapter 4 Precalc

Question 1

Basic Sine Function

Answer 1

Question 2

Basic Cosine Function

Answer 2

Question 3

Degree to Radian Conversion

Answer 3

Question 4

The Trigometric Functions

Answer 4

Question 5

Adjacent, Hypotenuse, and Opposite Convert to

Answer 5

Adjacent=x

Hypotenuse=r

Opposite=y

Question 6

45 45 90

Answer 6

Question 7

30 60 90

Answer 7

Question 8

Where are trig functions positive?

Answer 8

Question 9

A positive angle goes

Answer 9

counterclockwise

Question 10

A negative angle goes

Answer 10

clockwise

Question 11

Trig functions of real numbers

Answer 11

Question 12

Sinusoid Formula

Answer 12

Question 13

Amplitude of a Sinusoid

Answer 13

IaI

Question 14

Period of a Sinusoid

Answer 14

Question 15

Frequency of a Sinusoid

Answer 15

Question 16

Phase shift of a sinusoid

Answer 16

phase shift=c

Question 17

Tan Function

Answer 17

Question 18

Unlike the sinusoids the tan function has a denominator

Answer 18

that might be zero, which makes the function undefined

Question 19

tan x=

Answer 19

sin x/ cos x

Question 20

the period of a tangent function is

Answer 20

π/ lbl

Question 21

The Cotangent Function (reciprocal of the tangent function) and has asymptotes at zeros of the sine function

Answer 21

Question 22

The Secant Function (Reciprocal of the cosine function)

Answer 22

Question 23

The Cosecant Function (reciprocal of the sine function)

Answer 23

Question 24

for the sum to be a sinusoid the periods of two sinusoids to be added together must be

Answer 24

the same and the sum must have the same sum

Question 25

dampened oscillation

Answer 25

when oscillation reduces the amplitude of the wave

Question 26

f(x) in dampened oscillation is called

Answer 26

the dampening factor

Question 27

The values of y=sin^-1 x will always be found

Answer 27

on the right hand side of the unit circle between -π/2 and π/2

Question 28

The values of y=cos^-1 x will always be found

Answer 28

on the top half of the unit circle, between 0 and π

Question 29

The values of y=tan-1 x will always be found

Answer 29

on the right-hand side of the unit circle, between (but not including) -π/2 and π/2

Question 30

angle of depression

Answer 30

closest to view on top

Question 31

angle of elevation

Answer 31

bottom next to viewer facing up

Question 32

simple harmonic motion formula

Answer 32

Question 33

in simple harmonic motion, frequency is

Answer 33

ω/2π

Question 34

1/2 of a hypotenuse is equal to

Answer 34

side opposite of 30