integral

[sage ferry]

weirestrass maybe?

hey @shzz1

@grave hill

[grave hill]

u appeared

scared me

[sage ferry]

i got 1/2arctan(tanx/2)

+C

js use tan(x/2)=t

[grave hill]

or multiply both sides by sec²x
then I = ∫ (sec²x / (sec²x + 3)) dx
u = tanx
⇒ I = ∫ (1/(u²+4)) du
⇒ I = 1/2 arctan(u/2) + C
⇒ I = 1/2 arctan((tanx)/2) + C

[worldly current]

thanks that makes more sense

is this a level further math level or higher?

[sage ferry]

i think u learn arctangent standard result in fm

cp2 methods in calc

however using t=tan(x/2) is technically fp1

[grave hill]

yes