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anonymous

  • 5 years ago

Find all solutions of: 5sec9x=-10

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  1. Owlfred
    • 5 years ago
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    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. anonymous
    • 5 years ago
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    sec 9x = -2 cos 9x = 0.5 9x = arccos 0.5 9x = 60 degrees x = 6.66 degrees

  3. anonymous
    • 5 years ago
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    this is not the only solution within what limits do u require?

  4. anonymous
    • 5 years ago
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    sorryy i got that wrong its -0.5 not 0.5 so the least solution is 120 degrres / 9 = 13.33 degrees

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