Sin (3 x +2)=cos (4…

Discussion in 'Mathematics' started by Budtijobo, Sep 1, 2014.

  1. Budtijobo

    Budtijobo New Member

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    Sin (3 x +2)=cos (4 x-10)
     
  2. Haraka

    Haraka New Member

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    Sin (3 x +2)=cos (4 x-10) so we have to findvalue of x, in order todo so we have to somehow cancel sin andcos terms on b/s so icansin (3 x +2)=sin (pi/2+(4 x-10) as sin (pi/2+ x)=cosx->3 x +2=pi/2+4 x-103 x +2-4 x +10=pi/2->x=12-pi/2 alsosin (3 x +2)=sin (pi/2- (4 x-10) 3 x +2+4 x-10=pi/27 x-8=pi/2 x={ (pi/2)+(8) }/7
     

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