Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**tony123****Member**- Registered: 2007-08-03
- Posts: 189

Evaluate the integral

from 0 to pi/2

∫ ln(sin x ) dx

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

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**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Another answer

"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

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**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,535

[posts deleted]

I am really sorry to have deleted several posts here, I know you worked hard on you replies.

But unfortunately the argument got out of hand.

You may start again, but please think what it would be like to receive the replies you give.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

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