Precalc Hnr-Trig Identities formulas

5.0(2)
Studied by 76 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/25

flashcard set

Earn XP

Description and Tags

Pythagorean Identities, Sum and Difference Identities, Double Angle Identities

Pre-Calculus

12th

26 Terms

1
New cards
cos^2 x + sin^2 x=
1
2
New cards
1 - sin^2 x=
cos^2 x
3
New cards
( 1- sin x)(1+ sin x)
cos^2 x
4
New cards
1 - cos^2 x=
sin ^2 x
5
New cards
(1- cos x)(1+cos x)
sin^2 x
6
New cards
1 + tan^2 x=
sec^2 x
7
New cards
sec^2 x- tan^2 x=
1
8
New cards
(sec x - tan x)(sec x + tan x)=
1
9
New cards
tan^2 x-sec^2 x=
-1
10
New cards
(tan x- sec x)(tan x + sec x)=
-1
11
New cards
1 + cot^2 x =
csc^2 x
12
New cards
csc^2 x - cot^2 x=
1
13
New cards
(Csc x - cot x)(csc x+ cot x)=
1
14
New cards
cot^2 x - csc^2 x=
-1
15
New cards
(cot x- csc x)(cot x+csc x)=
-1
16
New cards
sin(A+B)=
(sin A)(cos B) + (sin B)(cos A)
17
New cards
sin(A-B)
(sin A)(cosB)-(Sin B)(Cos A)
18
New cards
cos(A+B)
(cos A)(cos B)- (sinA)(sinB)
19
New cards
cos(A-B)
(cos A)(cos B) + (sin A)(Sin B)
20
New cards
tan(A-B)
tan A - tan B/1+ (tan A)(tan B)t
21
New cards
tan(A+B)
tan A + tan B/ 1-(tan A)(tan B)
22
New cards
sin(2x)
2(sin x)(cos x)
23
New cards
cos(2x)
cos^2 x- sin^2 x
24
New cards
cos(2x)
2 cos^2 x-1
25
New cards
cos(2x)
1-2(sin^2 x)
26
New cards
tan(2x)
2(tan x)/1-tan^2 x