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Mathematics 7 Online
OpenStudy (anonymous):

proof for integration formula for /int(cot(x)dx)

OpenStudy (amistre64):

split it into cos/sin and ln it up

OpenStudy (anonymous):

|dw:1316528871267:dw|

OpenStudy (anonymous):

derivate of logarythm = u'/u whats the derivate of sin(x) ? It's cos(x)... so... /int cos(x)/sin(x) dx = log(sin(x)) + C

OpenStudy (amistre64):

id note that you might wanna include the absolute bars for sticklers

OpenStudy (anonymous):

indeed. thanks

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