intergral

[expscv]

hi all, but how do i intergrate


(cot(x))^2

thx

[matt grime]

replace with a trig identity involving cosec^2, and spot that it's the derivative of something.

[expscv]

oh i didnt able to get it,

another one is intergrate sec(x) my answer was Ln(1-t^2) where t=tan(x/2)
but it seems to be wrong


~~i m hopless with intergration anyone could help me imporve? i mean any advice in this field

[arildno]

1. Calculate the derivative of cotan(x)
2. Try to combine this with matt grime's suggestion

[NSX]

There's usually a section under Calc II for trig. integrals.