Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
maggs
maggs asked in Education & ReferenceHomework Help · 7 years ago

precal homework help?

how do i find all the values from 0 to 360 that satisfy this equation

sec3alpha=-square root 2???

1 Answer

Relevance
  • Michael
    Lv 5
    7 years ago
    Favorite Answer

    cos3x = root2/2

    (Flip for sec)

    Now, set cosx=root2/2

    Get all solutions through 1080 degrees since you are tripling the angle.

    You should get 15 degrees, 105 degrees, 135 degrees, 225 degrees, and 255 degrees and 345 degrees

    Just comment if you need more help.

Still have questions? Get your answers by asking now.