Question 268694
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Why?  Decimals are just the same as any other numbers.  If you are using Pythagoras, just substitute the numbers.  You might need to use a calculator, and you may end up with a numerical approximation rather than the exact answer -- but a number is a number is a number whether it is a natural number or an integer or a fraction or a decimal.



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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