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In mathematics, If you do the following: −(a−b)=−a−b-(a-b)=-a-b−(a−b)=−a−b, then It's a big mistake.
How many ordered pairs such that −10≤a,b≤10-10\leq a,b \leq10−10≤a,b≤10 exist such that the mistake given above is true?
Take a,ba,ba,b as integers.
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