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Pre Calc

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tan(tan-1 7.4)=?

  • Pre Calc - ,

    obviously 7.4

  • Pre Calc - ,

    By definition tan(tan−1(7.4))=7.4

    More explicitly:

    Let α=tan−1(7.4)

    Then by definition α is the unique angle such that tanα=7.4 and −π2<α<π2.

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