I was wondering if someone could help me with these questions?
4. Find the gradient of the tangent to the curve
I know that you need to use product rule, but I think my value of is wrong, although I'm not sure what's correct.
7. Given find dy/dx and
8. Given find the rate of change of y with respect to x, when x=2
I get the answer but the actual answer is
10. A curve is defined parametrically by
a) i) Find the equations of the tangents to the curve at the points where it crosses the x-axis
I worked out that but I don't think this is correct!
Further Differentiation help Watch
- Thread Starter
Last edited by ScottishShortiex; 30-11-2010 at 17:26.
- 30-11-2010 17:18
- 30-11-2010 17:36