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Tangent

Geometry Level 2

\[\large \tan^{-1} \frac {1}{3} - \tan^{-1} \frac{1}{5} + \tan^{-1} \frac{1}{7} = \ ?\]

\[\text{tan}^{-1} \dfrac{3}{11}\] \[\text{tan}^{-1} \dfrac{4}{9}\] \[\text{tan}^{-1} \dfrac{2}{4}\] \[\text{tan}^{-1} \dfrac{5}{7}\]

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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 Nazmus sakib

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