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Homework Statement
I'm searching for the integral that gives arcosu
Homework Equations
as we know : ∫u'/[1-u^2]^0.5 dx = arcsinu
derivative of arccosu = -u'/[1-u^2]^0.5 + C
derivative of arcsinu= u'/[1-u^2]^0.5
The Attempt at a Solution
when I type the -u'/[1-u^2]^0.5 on the online integral calculator it always gives me -arcsinu +C
Why it doesn't gives arccosu
is the arccosu=-arcsinu?!
and what is the integral that gives arcosu?