Trig Identities: Sum, Difference, Double Angle, Half Angle, Power Reducing

0.0(0)
studied byStudied by 1 person
0.0(0)
full-widthCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/20

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

21 Terms

1
New cards

sin(a + b)

sin(a)cos(b) + cos(a)sin(b)

2
New cards

sin(a - b)

sin(a)cos(b) - cos(a)sin(b)

3
New cards

cos(a + b)

cos(a)cos(b) - sin(a)sin(b)

4
New cards

cos(a - b)

cos(a)cos(b) + sin(a)sin(b)

5
New cards

tan(a + b)

tan(a) + tan(b)

----------------

1 - tan(a)tan(b)

6
New cards

tan(a - b)

tan(a) - tan(b)

----------------

1 + tan(a)tan(b)

7
New cards

sin(2a)

2sin(a)cos(a)

8
New cards

cos (2a)

2cos²(a)-1

9
New cards

cos (2a)

1- 2sin²(a)

10
New cards

cos (2a)

cos²(a) - sin²(a)

11
New cards

tan(2a)

2tan(a)

-----------

1 - tan²(a)

12
New cards

2tan(a)

-----------

1 + tan²(a)

nothing

13
New cards

sin (a/2)

knowt flashcard image
14
New cards

cos (a/2)

knowt flashcard image
15
New cards

tan (a/2)

knowt flashcard image
16
New cards

tan (a/2)

knowt flashcard image
17
New cards

sin²a

1-cos2a

-------

2

18
New cards

cos²a

1+cos2a

-------

2

19
New cards

tan²a

1-cos2a

-------

1+cos2a

20
New cards

sec²a

1+tan²a

21
New cards

csc²a

1+cot²a