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Offline Sorceres

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integrate cosec^2x
« on: March 27, 2010, 08:41:58 am »
helpp!!1

how to intergrate cosec^2x to -cot x??
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Offline luluabdl

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Re: integrate cosec^2x
« Reply #1 on: March 27, 2010, 01:49:22 pm »
Quote from: Sorceres on March 27, 2010, 08:41:58 am
helpp!!1

how to intergrate cosec^2x to -cot x??


Isn't this already a rule found in the formula booklet given in the exam? That the integral of cosec2x = -cot x.
Actually its under the rules in the C3 differentiation section, when f(x) = cot x  f'(x) = -cosec2x. So we just reverse it when we need to integrate.
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Offline Saladin

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Re: integrate cosec^2x
« Reply #2 on: March 27, 2010, 02:11:37 pm »
that shub be suffice.

this is an further differentiaion  question found in C3

please resort to book for more help

also, formulas are present in formula book.
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Offline astarmathsandphysics

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Re: integrate cosec^2x
« Reply #3 on: March 27, 2010, 06:57:35 pm »
It is a standard integral
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Offline Saladin

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Re: integrate cosec^2x
« Reply #4 on: March 27, 2010, 07:01:38 pm »
yea, i know, but boy am i happy i got here b4 u.

hehe

finally beat u to sth after a long time.
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