You will need product rule for this....

Note that

So when you apply product rule, you should end up with

Do you see why this is the case? I leave it for you to simplify this.

For this one, useThe next problem is to find the tangent line at the point (-3sqr(3),1) for the curve x^(2/3) + y^(2/3) = 4.

If anyone could show me how to do this it would be much appreciated.implicit differentiation...

You should end up with [I leave it for you to show that this is the case].

Then plug your point in to find the slope of the tangent line. Then plug in all the known values into the point-slope equation for a line and get it into form.

Can you try this one and see what you get?

--Chris