I don't know how to show this:
Can anyone help? Thanks.
Obviously you are just differnetiating first using the rule for differentiating arcsin but then once I evaluate it all I do not get the required solution.
In the 1st line of the differentiation, the 3rd term, I am unsure of why there is an in the square root, should this not be over 16?
I do not understand how you went from the first line to
is obvious but the other part is not so clear.