Without integration, why is the volume of a paraboloid half of its inscribing cylinder? (DIw/oI #8)

15:51
But why is a sphere's surface area four times its shadow?

22:02
The geometric interpretation of sin x = x - x³/3! + x⁵/5! -...

21:57
What is Lie theory? Here is the big picture. | Lie groups, algebras, brackets #3

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Elon Musk exposes why Democrats don’t want ‘waste and fraud’ to be turned off

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What do complex functions look like? | Essence of complex analysis #4

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Why is the "4-color theorem" easier on the torus? | Euler characteristic #2

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Quando é que eu vou usar matemática? Como responder realmente a esta pergunta

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