Ask Question
3 November, 06:05

Sin^4 x - cos^4 what is x

+1
Answers (1)
  1. 3 November, 06:12
    0
    - cos 2x

    Explanation:

    sin

    4

    x

    -

    cos

    4

    x

    =

    (

    sin

    2

    x

    +

    cos

    2

    x

    )

    (

    sin

    2

    x

    -

    cos

    2

    x

    )

    Reminder:

    sin

    2

    x

    +

    cos

    2

    x

    =

    1

    , and

    cos

    2

    x

    -

    sin

    2

    x

    =

    cos

    2

    x

    Therefore:

    sin

    4

    x

    -

    cos

    4

    x

    =

    -

    cos

    2

    x
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Sin^4 x - cos^4 what is x ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers