Find all real solutions of the given equation, exp...

Answers ( 3 )

  1. tamara webb
    tamara webb
    you know ;
      from this equation you can derive;
    plug this into the main equation than you can get ;
    then let us say ;
    by pluging this into the equation;
       from this you can find;

    and then plug cos x for a you can reach the known angles 5pi/6 and2pi
  2. ???? ???????
    ???? ???????

  3. veronika bayer
    veronika bayer
    I am sorry i made a small mistake while finding a its first value must be 1/2 and the second value is -1 be aware of this !!

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