Trigonometry revisions - boards

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/22

flashcard set

Earn XP

Description and Tags

Formulas

Geometry & Trigonometry

Right Triangles & Trigonometry

NCERT Class XI

Math

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

23 Terms

1
New cards

Rad to D

<p></p>
2
New cards

squred

knowt flashcard image
3
New cards

Cos (x+y)

cosx cosy - sinx siny

4
New cards

cos (x-y)

cosx cosy - sinx siny

5
New cards

sin(x+y)

sinx cosy + cosx siny

6
New cards

sin (x-y)

sinx cosy - cosx siny

7
New cards

tan (x + y)

tanx +tan y

1- tanx tany

8
New cards

tan (x-y)

tanx-tany

1+tanx tany

9
New cards

cot(x+y)

cotx coty-1

coty +cotx

10
New cards

cot (x-y)

cotx coty +1

coty - cotx

11
New cards

cos2x

cos²x-sin²x 2cos² x -1 1- 2sin² x 1- tan² x

1+ tan²x

12
New cards

sin2x

2sin x cos x. 2tanx

1+ tan² x

13
New cards

tan 2x

2 tanx

1+ tan² x

14
New cards

sin 3x

3sinx - 4 sinÂł x

15
New cards

cos 3 x

4 cosÂł x - 3 cos x

16
New cards

tan 3x

3tanx - tanÂł x

1-3 tan² x

17
New cards

cosx + cos y

cosx- cosy

Sinx + siny

sinx - siny

<p></p>
18
New cards

  1. cos(x+y) +cos(x-y)

cos(x+y) -cos(x-y)

sin(x+y) + cos(x-y)

sin(x+y) - cos(x-y)

knowt flashcard image
19
New cards

General

knowt flashcard image
20
New cards

Sin ratios

<table><tbody><tr><th colspan="1" rowspan="1"><p></p></th><th colspan="1" rowspan="1"><p></p></th><th colspan="1" rowspan="1"><p></p></th></tr><tr><td colspan="1" rowspan="1"><p></p></td><td colspan="1" rowspan="1"><p></p></td><td colspan="1" rowspan="1"><p></p></td></tr><tr><td colspan="1" rowspan="1"><p></p></td><td colspan="1" rowspan="1"><p></p></td><td colspan="1" rowspan="1"><p></p></td></tr></tbody></table>
21
New cards

Derivation

<p></p>
22
New cards

Imp

knowt flashcard image
23
New cards

B

knowt flashcard image

Explore top notes

Explore top flashcards