prove that tan2a-tan2b=sin2a-sin2b/cos2a.sin2b

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prove that tan2a-tan2b=sin2a-sin2b/cos2a.sin2b

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Gabriella 2 weeks 2021-11-19T15:11:00+00:00 1 Answer 0 views 0

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    2021-11-19T15:12:34+00:00

    Answer:

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