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.

How to solve:?

Update:

4 sin x cos x= 2 sin x + 2 cos x -1

2 Answers

Relevance
  • St N
    Lv 7
    7 years ago

    Read the question. Figure out what it asks, Use what you have been taught to come up with an answer.

  • 7 years ago

    set to 0 and factor:

    (2sinx - 1)(2cosx - 1) = 0

    can you take it from here?

Still have questions? Get your answers by asking now.