Learn: Half Angle Identities

0.0(0)
Studied by 0 people
call kaiCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/4

encourage image

There's no tags or description

Looks like no tags are added yet.

Last updated 12:50 AM on 10/6/26
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai
Chat

No analytics yet

Send a link to your students to track their progress

5 Terms

1
New cards

cos(x/2) (half-angle)

±√(1 + cos x) / 2

2
New cards

sin(x/2) (half-angle)

±√(1 − cos x) / 2

3
New cards

tan(x/2)

1-cosx / sinx

4
New cards

tan(x/2)

±√(1 − cos x) / (1 + cos x)

5
New cards

tan(x/2)

sinx / 1 + cosx