Given y= sqrt(x) + 4/sqrt(x) + 4 , find dy/dx when x=8 giving your answer in form Asqrt(2) where A is a rational number.

Read and understand the questionRe-write in easier form to be able to differentiateDifferentiate and sub in value for xSimplifyMake sure we answer the question

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Answered by Corey M. Maths tutor

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What exactly IS differentiation?


How do I find the co-ordinates and nature of the stationary points on a curve?


How do I integrate fractions of quadratic or cubic terms?


Use integration by parts to find ∫ (x^2)sin(x) dx. (A good example of having to use the by parts formula twice.)


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