Mathematics, 09.09.2020 14:01 samc7910

Prove that
tan² 20° + tan² 40° + tan² 80° = 33

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Prove that
tan² 20° + tan² 40° + tan² 80° = 33...

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Prove that tan² 20° + tan² 40° + tan² 80° = 33

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Prove that
tan² 20° + tan² 40° + tan² 80° = 33