- #1
TheDestroyer
- 402
- 1
I know some of them, such as :
cos (2x) = (cos x)^2 - (sin x)^2
sin (2x) = 2(cos x)(sin x)
tan (2x) = (2tan (x))/(1-(tan x)^2)
sin (a+b) = sin a cos b + cos a sin b
cos (a+b) = cos a cos b - sin a sin b
I need the other formulas such as
sin x/2
cos x/2
sin x^2
cos x^2
sin x^3
cos x^3
sin (x^(1/2))
cos (x^(1/2))
And any others, everyyything about them,
Anyone can help? or guide me to a link?
cos (2x) = (cos x)^2 - (sin x)^2
sin (2x) = 2(cos x)(sin x)
tan (2x) = (2tan (x))/(1-(tan x)^2)
sin (a+b) = sin a cos b + cos a sin b
cos (a+b) = cos a cos b - sin a sin b
I need the other formulas such as
sin x/2
cos x/2
sin x^2
cos x^2
sin x^3
cos x^3
sin (x^(1/2))
cos (x^(1/2))
And any others, everyyything about them,
Anyone can help? or guide me to a link?