12th Class Mathematics Continuity and Differentiability

  • question_answer 111) If  y = cos?1x, find  in terms of y alone.  

    Answer:

    y = cos?1x.                   Diff. w.r.t. y                            Diff. w.r.t. x.                   = cosec y cot y (?cosec y)          = ? cot y cosec2y  


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