Proving imaginary number lies parallel to the real axis.
Apr 19, 2026 0 views
General
Why is the decimal abacus more popular than the binary one?
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Prove the truncated pyramid volume formula
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![Centre of a matrix ring are $ \operatorname{diag}\{ a, a, ..., a \} $ with $ a\in Z(R) $ [duplicate]](https://tune.fundegar.com/uploads/centre-of-a-matrix-ring-are-operatorname-diag-a-a-a-with-a-in-z-r-duplicate_720.jpg)
Area of an ellipse
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Complexity of matrix multiplication with different size
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Nilpotent element in $\mathbb{Z}/12\mathbb{Z}$ - Ideal
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$\sqrt 2$ is even?
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Graphing $x^{3 / 2} + y^{3/2} =1$
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Why do we reverse inequality sign when dividing by negative number?
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![What does it even mean to say 'preserve structure'? [duplicate]](https://tune.fundegar.com/uploads/what-does-it-even-mean-to-say-039-preserve-structure-039-duplicate_720.jpg)
What does it even mean to say 'preserve structure'? [duplicate]
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Avoid dividing by zero with just variables and basic operators
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Counting time with a watch that pauses for 15 minutes every hour
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Moment of inertia of a semicircle by simple integration.
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