Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Mathematics (https://www.askmehelpdesk.com/forumdisplay.php?f=199)
-   -   Please help verify this trig identity... (https://www.askmehelpdesk.com/showthread.php?t=571767)

  • Apr 20, 2011, 10:11 PM
    mako451
    Please help verify this trig identity...
    (cotx-tanx)/(cosx+sinx) = (cosx-sinx)/(sinxcosx)




    I'm sooooo lost thank you
  • Apr 21, 2011, 06:24 AM
    ebaines
    Quote:

    Originally Posted by mako451 View Post
    (cotx-tanx)/(cosx+sinx) = (cosx-sinx)/(sinxcosx)

    im sooooo lost thank you

    First, make the substitution cot(x) = cos(x)/sin(x) and tan(x) = sin(x)/cos(x). This gives you



    Now cross-multiply, and you're essentially done.

  • All times are GMT -7. The time now is 11:13 PM.