Date: True or False - write in the whole word, not just T or F [5 marks] You must explain proper logic or find a counter example for full marks. If a counter example is not practical please correct the error. So please explain why your answer is correct. 4. Function f(x) = 2vx and its derivative, will have the same domain. 5. The best way to differentiate a function which has a rational coefficient is by using the quotient rule. live 6. The following example shows a correct usage of the chain rule If j ( x) = h(f(g (x))), then j' (x) = h'(f(g(x)) f'(g(x))g'(x) 7. If f(a) = b, and f is continuous at P(a, b), and f' (a) = 0 are all true, then you may conclude that f has a max or min at x = a. 8. The function f(x) = -(4 - 2x)' has only one value of x for which its derivative is not positive