- #1

- 157

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## Homework Statement

## Homework Equations

## The Attempt at a Solution

I'm not sure how to prove that it is zero. I don't see what I can do after the second last step.

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- Thread starter ainster31
- Start date

- #1

- 157

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I'm not sure how to prove that it is zero. I don't see what I can do after the second last step.

- #2

arildno

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What does sin(integer*pi) equal?

- #3

- 157

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What does sin(integer*pi) equal?

It's equal to zero.

Wow. My trigonometry is terrible.

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