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View Thread: Math Quiz: 9 is number one
  • brianbec

    iStation said:
    algorith said:
    *snip*

    OK!
    Another one,

     

    lim x->0 [{sin(9x)}/x] = ?

     

    Nice one. Here's another

     

    Find the first positive real value of t for which the following is zero

     

    256 cos^9(pi t / 162) - 576 cos^7(pi t / 162) + 432 cos^5(pi t / 162) -120 cos^3(pi t/162) + 9 cos(pi t / 162)