#sin cos double angle formula

23 messages · Page 1 of 1 (latest)

upper mesa Apr 17, 2023, 4:44 PM

#

How did they get from sin3x cos3x to that

gloomy hamlet Apr 17, 2023, 4:49 PM

#

upper mesa How did they get from sin3x cos3x to that

first to second line

#

is double angle identity

upper mesa Apr 17, 2023, 4:49 PM

#

Ok but

#

What double angle even is that

#

I’ve never seen it before

gloomy hamlet Apr 17, 2023, 4:49 PM

#

sin(2x) = 2sin(x)cos(x)

upper mesa Apr 17, 2023, 4:49 PM

#

Omg

#

No way

gloomy hamlet Apr 17, 2023, 4:50 PM

#

um im not too sure bout that

upper mesa Apr 17, 2023, 4:50 PM

#

Srsly

#

How come

#

I didn’t think of that

gloomy hamlet Apr 17, 2023, 4:50 PM

#

its ok😢

#

i dont know much but i remember that

upper mesa Apr 17, 2023, 4:50 PM

#

Now I have to memorise all this

#

Ugh

#

Why do they ask those in a level

#

Ugh

#

Omg no

#

It’s sin3xcos3x

#

There’s no 2

#

At the front of it