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-   -   LPlane Trigonometry (https://www.askmehelpdesk.com/showthread.php?t=174153)

  • Jan 19, 2008, 09:24 AM
    Caius
    lPlane Trigonometry
    Simplify the following :

    sin(90° +x ) sin(18o° + x ) + cos (90° + x ) cos (180° -x )


    And solve the following right triangle by logarithms :

    A= 28° 30' , b = 18.3

    I have already solved the above problems but I need a check !
  • Jan 19, 2008, 09:54 AM
    PolluxCastor
    Well, then show me what you did.

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