Results 1 to 2 of 2

Math Help - x in deg. and rad. in terms of sin

  1. #1
    Newbie
    Joined
    Jun 2005
    Posts
    18

    x in deg. and rad. in terms of sin

    Hi I need help with the following please?

    Find X in radians, in terns of pi: sin x = 1/radical 2

    Fine X in degrees, to nearest tenth: sin x = .35

    THANK YOU
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Site Founder MathGuru's Avatar
    Joined
    Mar 2005
    From
    San Diego
    Posts
    478
    Awards
    1

    Inverse sin

    1. sin x = 1/\sqrt{2}

    x = Asin(1/\sqrt{2})

    using a calculator, i found that Asin(1/\sqrt{2})=.785398...

    I divided this number by pi and got 1/4

    so the answer is \frac{\pi}{4}

    2. sin x = .35

    x = Asin(.35)

    using a calculator, i found that Asin(.35)=20.487......

    so the answer is 20.5 degrees
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. in terms of X 10^-n
    Posted in the Algebra Forum
    Replies: 0
    Last Post: November 22nd 2009, 07:54 AM
  2. Replies: 2
    Last Post: November 15th 2009, 07:07 PM
  3. To sum n terms
    Posted in the Trigonometry Forum
    Replies: 5
    Last Post: December 19th 2008, 08:48 PM
  4. tan, cot in terms of p,q
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: November 6th 2008, 05:22 PM
  5. sum of 1st nth terms
    Posted in the Algebra Forum
    Replies: 9
    Last Post: January 25th 2008, 06:11 PM

Search Tags


/mathhelpforum @mathhelpforum