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

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#1 Re: Exercises » Differentiation » 2015-04-22 14:09:13

These are exercises. You should hide your answers.

#2 Re: Help Me ! » Functions Help » 2015-04-12 23:13:11

Hi Bob

I don't think f can take values between 0 and 1 either.

#3 Re: Help Me ! » My question is concerned with set theory. » 2015-04-12 01:56:05

It's the number set we are the most familiar with. If we do not define it, we might as well not have mathematics.

#15 Re: Puzzles and Games » Correspondence Chess » 2015-04-11 07:56:00

I'm assuming you mean d5x?

1.c4 d5
2.d5x Nf6

#17 Re: Help Me ! » My question is concerned with set theory. » 2015-04-11 07:43:45

What's more, the definition of natural numbers hinges on the fact that {} is different from {{}}.

#21 Re: Help Me ! » Sequence » 2015-03-25 12:45:21

bob bundy wrote:

hi Stefy,

Thanks.  But I'm getting strange results from the second solution to the quadratic.  And I've tried two more examples with the same happening again.  I'm just trying to make sense of all my paperwork; then I'll post what I've found.

Bob

I didn't have to solve any quadratics...

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