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Why the Tangent command uses x(A) with parabola and not A like it uses with circles)
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The same problem 
Why the Tangent command uses x(A) with parabola and not A like it uses with circles)
Try
not
Thanks,
still I wonder why it behaves differently?
M
because f(x)=x^2 is a function and y=x^2 is a conic
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