Trig identities part 2 (parr 4 if you watch the proofs)
Loading...
Loading...
82,905
Loading...
There is no Interactive Transcript.
Uploader Comments (khanacademy)
Top Comments
-
youtube > teachers
2 years ago 153
see all
All Comments (58)
-
can u please improve the quality of the videos..thanks :)
-
I get to school and hear teachers talk about *_*....then i get to youtube and itss like..wow i learned smethin new today...^_^
-
at 6:52 why is it 2sinacosa, isnt suppose to be 2sinacosb? sorry if i dont get itXD
-
good not having heads in the way
-
functions test hero
-
@GangstaGriIIz so true dude
-
Those 8 dislikes are by teachers :P
-
@khanacademy My buddy actually used versine to prove a formula on a test in one of his calculus classes. He forgot what he was supposed to have memorized and ended up having to derive it.
-
@MrTeeson thanks :)
Loading...
- 9:48
Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b)by khanacademy103,515 views
- 9:10
Trigonometric Identitiesby khanacademy195,484 views
- 9:22
Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b)by khanacademy55,808 views
- 12:11
Basic Trigonometry IIby khanacademy115,244 views
- 1:49
worst professor everby ugod355403,663 views
- 9:18
The Most IMPORTANT Video You'll Ever See (part 1 of 8)by wonderingmind424,017,294 views
- 2:16
Proving Trigonometric Identitiesby pollardrho0627,260 views
- 10:11
Unit Circle Definition of Trig Functionsby khanacademy183,325 views
- 10:00
Trigonometry (Proving Identities # 1)by maths48626,400 views
- 10:50
Prove Basic Trig Identities Part 2by videosbyjulieharland4,392 views
- 9:55
Radians and degreesby khanacademy276,763 views
- 10:06
Inverse Trig Functions: Arctanby khanacademy43,666 views
- 9:13
Prove Basic Trig Identities Part 1by videosbyjulieharland3,686 views
- 5:12
More trig graphsby khanacademy66,528 views
- 142 videos2ND PUC - MATHS
- 10:16
Graphs of trig functionsby khanacademy116,453 views
- 10:36
Inverse Trig Functions: Arcsinby khanacademy88,198 views
- 8:00
Navigation Word Problemby khanacademy39,664 views
- 12:08
Trig Implicit Differentiation Exampleby khanacademy55,084 views
- 11:07
Trigonometry Identity Review/Funby khanacademy33,920 views
I like these videos. Have you considered doing a series on the "extinct" trig functions like versine and exsecant?
Might be interesting.
opinionhead444 3 years ago 18
That's interesting. I actually didn't know about them. I read about them after your comment. I might do some videos on this.
khanacademy 3 years ago 39