Results 1 to 6 of 6

Math Help - Standard form

  1. #1
    Senior Member Mukilab's Avatar
    Joined
    Nov 2009
    Posts
    468

    Standard form

    How would I work out 200(2.34x10^25)\mbox{without a calculator (then I can put it into standard form)}

    Sorry, the power should be 10 to the power of 25, not working for some reason
    Follow Math Help Forum on Facebook and Google+

  2. #2
    -1
    e^(i*pi)'s Avatar
    Joined
    Feb 2009
    From
    West Midlands, England
    Posts
    3,053
    Thanks
    1
    Quote Originally Posted by Mukilab View Post
    How would I work out 200(2.34x10^25)\mbox{without a calculator (then I can put it into standard form)}

    Sorry, the power should be 10 to the power of 25, not working for some reason
    When using latex it is preferable to use \times or \cdot to show multiplication as not to get confused with the variable x

    [tex]10^{25}[/tex] = 10^{25}

    I'd say that 200 = 2 \times 10^2 so it would reduce to 2 \times 2.34 \times 10^2 \times 10^{25}
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member Mukilab's Avatar
    Joined
    Nov 2009
    Posts
    468
    Quote Originally Posted by e^(i*pi) View Post
    When using latex it is preferable to use \times or \cdot to show multiplication as not to get confused with the variable x

    [tex]10^{25}[/tex] = 10^{25}

    I'd say that 200 = 2 \times 10^2 so it would reduce to 2 \times 2.34 \times 10^2 \times 10^{25}
    Thank you, so I gather from that the answer is 4.68 \times 10^{27}
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Senior Member Mukilab's Avatar
    Joined
    Nov 2009
    Posts
    468
    Sorry, what formula is your name regarding?

    Never heard of e^{i\cdot \pi}
    Follow Math Help Forum on Facebook and Google+

  5. #5
    -1
    e^(i*pi)'s Avatar
    Joined
    Feb 2009
    From
    West Midlands, England
    Posts
    3,053
    Thanks
    1
    Quote Originally Posted by Mukilab View Post
    Thank you, so I gather from that the answer is 4.68 \times 10^{27}
    Indeed

    Quote Originally Posted by Mukilab View Post
    Sorry, what formula is your name regarding?

    Never heard of e^{i\cdot \pi}
    e^{i\pi} = -1 and it's a very famous identity in complex numbers, it's Euler's identity and comes from the fact that e^{ix} = cos(x) + isin(x)

    Where i^2  = -1
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Senior Member Mukilab's Avatar
    Joined
    Nov 2009
    Posts
    468
    thank you for the information.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: February 3rd 2011, 06:41 PM
  2. Replies: 2
    Last Post: March 9th 2010, 08:33 PM
  3. Replies: 1
    Last Post: February 16th 2010, 07:21 AM
  4. Standard form/Slope-intercept form
    Posted in the Algebra Forum
    Replies: 1
    Last Post: February 9th 2009, 08:04 PM
  5. Replies: 14
    Last Post: May 30th 2008, 06:10 AM

Search Tags


/mathhelpforum @mathhelpforum