Asked by Anonymous
                given y=theta-cos theta and x=sin theta. Show that d^2x/dy^2 =sec^2 theta (tan theta + sec theta)
            
            
        Answers
                    Answered by
            mathhelper
            
    y = θ - cosθ and 
x = sinθ
before I do this, confirm that this is what you actually meant,
and confirm you are not missing some trig operator in front of
that first θ
    
x = sinθ
before I do this, confirm that this is what you actually meant,
and confirm you are not missing some trig operator in front of
that first θ
                    Answered by
            Muhindo
            
    Yes I didn’t miss any trig operator
    
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