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-   -   Trig Identity (https://www.askmehelpdesk.com/showthread.php?t=655772)

  • Apr 29, 2012, 09:40 PM
    yadiraa4
    Trig Identity
    Prove the identity: cosxcotx+sinx=cscx
  • Apr 29, 2012, 09:41 PM
    yadiraa4
    Trig
    If cosx= -2/3 and pi/2, find the exact value of cos(pi/3-x)
  • Apr 29, 2012, 09:41 PM
    yadiraa4
    Trig
    Given cos x=2/3 and 3pi/2<x<2pi, find the exact value of cos2x?

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