Ch 13 & 14 Flashcards Preview

Algebra 2 > Ch 13 & 14 > Flashcards

Flashcards in Ch 13 & 14 Deck (35):
1

Sin UC

y/r

2

Cos UC

X/r

3

Tan UC

Y/x

4

Sin reciprocal UC

Csc
R/y

5

Cos reciprocal UC

Sec
R/x

6

Tan reciprocal UC

Cot
X/y

7

Quadrants signs

ASTC
All pos
Sin/ recip pos
Tan/ recip pos
Cos/ recip pos

8

30*

\|3/2, 1/2
Pie/6

9

45*

\|2/2, \|2/2
Pie/4

10

60*

1/2, \|3/2

11

90*

Pie/2

12

Remember quadrants
1
2
3
4

1- all pos
2- sin pos
3- tan pos
4- cos pos

13

Sin triangle

Opp/hyp

14

Cos triangle

Adj/hyp

15

Tan triangle

Opp/adj

16

30,60,90 triangles

Across 90 is 2x
Across 60 is x\|3
Across 30 is x

17

45 45 90 triangle

45 x
45 x
90 x\|2

18

Coterminal angles

Same line
Pos neg angle

19

Conversion factor for radians and degrees

One pie = 180*

20

Area of sector

1/2(r^2)ø
Ø is in radians

21

Arc length


Ø is in radians

22

Reference Angles are in relationship to

X axis

23

How to evaluate trig functions

Find reference angle (Ø')
Evaluate trig function for Ø'
Determine sign based on quadrant of beginning

24

Sin ^-1 3/2means

Sin Ø = 3/2

25

When doing inverse functions, always use what mode

Degrees

26

Sin graph starts

On the bottom of the wave

27

Cosine graph starts on the

Top of the wave

28

How to find max and mins of sin and cos

Amplitude

29

Period for cos sine

2pie/ b

30

Period for tan

Pie/b

31

Asymptotes for tan

Pie/ 2b

32

Halfway points for tan

(Pie/4b, a)

33

Midline

Horizontal line in vertical shift

34

Pythagorean identity

Sin^2 Ø + cos^2 Ø=1

35

General solution or interval are in

Radians