Posted by nida jabeen on Monday, December 5, 2011 at 3:23am.
Find dx at (5,6) if x2 + y2 =0 2 Marks
dy

calculus  drwls, Monday, December 5, 2011 at 8:09am
What does " 2 Marks dy" have to do with your question?
I assume you want to know dy/dx, the derivative, somewhere.
If x^2 + y^2 = 0, Both x and y must be zero. (5,6) is not on the curve.
You question does not make sense.
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