Find dy/dx : (9/x)+(9/y)=4 My answer is ((xy)^2 - 9y^2)/-9x^2 My answer is not matching with the correct answer. Is it wrong ? Can u help me.
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Originally Posted by kashifzaidi Find dy/dx : (9/x)+(9/y)=4 My answer is ((xy)^2 - 9y^2)/-9x^2 My answer is not matching with the correct answer. Is it wrong ? Can u help me.
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