This BS intrigued me when my niece aggressively defended what she was taught at school and hysterically refused any rationality. At least she is eight years old... Than what about the adults? Yeah, we learned to apply logical thinking to illogic systems in themselves.
hehe
I fail to see what is wrong with what she claims to have been taught.
1 / 0 is indeed undefined. What else would it be?
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The whole thing is just for filling sciences big gaps. The zero is the problem right from the start but they twist it till it fits their paradigm.
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You are writing this comment using devices and complex infrastructures built with math. And it works, so I see no problems in undefined.
Did you ever divided anything by zero in real life? : )
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Math is good. But the issue here is that the math doesn't apply anymore, where is multiplication there is division too.
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I need a real-life example of division by zero to understand why a division by zero would not be undefined.
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Exactly, reality becomes inconvenient at some point for science... If this happens to simple algebra then what about advance physics? If 1 × 0 has an result so should 1 ÷ 0. But not quite, the issue is mixing apples with pears, zero is not a number, zero = the undefined itself.
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There are quite a few fundamental reasons why division by 0 is undefined. The first is to consider the graph of the function
y = 1/x.If we consider the limit from the right hand side (positive real numbers) and the limit from the left hand side (negative real numbers), we observe that they go in opposite directions!
Now, what we really want to do is consider is the statement
The limit of 1 / x as x approaches 0.In mathematical terms, this statement is asking what the value of the function
1/xis asxhas an arbitrarily small magnitude -- with magnitude being defined as the distance from 0 (and distance is always positive).In order for a limit,
L, to be defined for a functionf(x)asxapproaches some valuea, the following statement must be valid: If for everye, there exists ad, such that|f(x) - L| < e, then|x - a| < d.In other words, for all possible open sets that contains your limit L in the y-direction, you are required to find a corresponding open set in the x-direction such that when you plug-in each of the elements of the open set in the x-direction that their outputs lie in the open set from the y-direction, then you have a limit L.
Granted, it's tedious to do this for every possible value
e(there's an infinite number of them!), so you use different techniques to prove this.And in order to prove that there is a limit doesn't work (and a limit has to be finite), all you have to do is show that one
edoesn't satisfy the condition above.In addition, there are other reasons why you can multiply by 0, but can't divide by it -- even though you would think these are inverse operations. In fact, they are invertible, except for the element 0!
0 is actually quite special when it comes to fields, which the real numbers are.
In short, your daughter is being taught things correctly, even if the logic behind it is unclear or not completely explained. The reasoning is quite evident and requires lots more math.
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You are correct. Incorrect is zero as a number.
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It's hard to believe your last comment was 11 months ago... Anyway, you seem Smart... Can you review my P.C. Theory and tell me if you see room for improvement...???
COIN MAN by @pocketechange ...A penny may cost a dollar...
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I love this post kids are so funny I have nieces my self and they are a handful ..keep up the good work/ btw can you follow me thank you
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A handful... ouch, hehe
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