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Geometry Level 2

\[ \large \cot(\cos^{-1}(\sin(\tan^{-1}(\cos(\sin^{-1}(x)))))) = \ ? \]

Image Credit: Flickr Samantha Stock.

\[x^2+2\] \[\sqrt{1-x^2}\] \[\sqrt{x^2-1}\] \[\sqrt{2-x^2}\]

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Excel in math and science

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It's hard to learn from lectures and videos

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by Danish Ahmed

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