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Question Number 93571 by prince 5 last updated on 13/May/20

$$Provethat\frac{1-{tan}^3\theta }{1+{tan}^3\theta }=1-2{sin}^2\theta$$

Commented by mr W last updated on 13/May/20

$$you{can}^{\prime }tprovesomethingwhichis$$$$false.justtestwith\theta =30°.$$

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