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Mathematics, 10.12.2020 01:00 blue5488

Verify the identity

1+sinbeta/1-sinbeta - 1-sinbeta/ 1+sinbeta =4 tanbeta secbeta

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Verify the identity

1+sinbeta/1-sinbeta - 1-sinbeta/ 1+sinbeta =4 tanbeta secbeta...
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