Sine function.

**hpla** · March 27th 2011, 10:24 AM

hey . when i look at this function

i cant get it . but i try to drawing it to understand it . i drawing it and i understand one thing look at the pic and tell me :

1) if i totally wrong . and tell me the right answer .

**mr fantastic** · March 27th 2011, 11:03 AM

Originally Posted by hpla

hey . when i look at this function

i cant get it . but i try to drawing it to understand it . i drawing it and i understand one thing look at the pic and tell me :

1) if i totally wrong . and tell me the right answer .

What is the question? We are not mind readers. Please post the question exactly as it's written from where you got it from.

**e^(i*pi)** · March 27th 2011, 11:40 AM

I haven't the foggiest idea what you mean, is it related to Balloon Calculus home page. Easy calculus! Don't integrate - balloontegrate! ?

**topsquark** · March 27th 2011, 12:20 PM

Try a u substitution. Let $u = \pi x$ . Then $du = \pi dx \implies dx = \frac{du}{\pi}$ .

-Dan

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