Easy stuff, i'm just retarded

  • Thread starter bocobuff
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  • #1
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Homework Statement



it's been a long summer and i forgot everything.
i need help integrating 1-cos(t)dt

evaluate g(x) = [[tex]\pi[/tex],x]integral (1-cos(t))dt

i know by pt2 of fund. thm of calc that g' (x) = 1-cos(x)
but i can't remember how to evaluate the integral and then differentiate to prove my answer.\
I should just know the integral of 1-cosx but i'm retarded and forgot what to do.
any help?
 

Answers and Replies

  • #2
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Well you know that by the properties of integrals, you can treat it as two integrals
[tex]I=I_1+I_2=\left(\int 1dt\right)+\left(-\int\cos{t}dt\right)[/tex]
Do you know these integrals? What is the derivative of [itex]-\sin{t}[/itex]?
 

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