Differentiation structured questions
I need help with some questions that I have been stuck with on my crash course to teach myself calculus before school starts.
1) If , show that
I have tried to solve for the derivatives of y and I derived extremely complicated fractions with powers of 3/2 and such and I cannot simplify the equation to = 0.
b) Using your answer in (a) , differentiate the following with respect to x
For this, I am unsure of what to let be u so that I can use the chain rule in the form
I have dealt with trigo functions like sin^8(x) and sin(8x) but never in the form that the question gave (8th power only applies to the fraction and not the whole function) and I do not know how to proceed.
Any help at all is appreciated :)