Stuck on this: A curve has the equation . Find the gradient at the point (2,2).
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Originally Posted by Beard Stuck on this: A curve has the equation . Find the gradient at the point (2,2). You can differentiate both sides with respect to x remembering that y is a function of x. (N.B> I used the product rule on the second term ) Simplifying you get Now just substitute , and you have the value of , which is the gradient. HTH
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