1. Differenciate the following functions i) y = x2ln(4x) ii) y = ln (x + 1)/x iii) y = ln (x2 - 1)1/2 2. Laws for differentiating logs and exponentials 3. I did some of the more easy one's, these ones just got me stumped. i) i think you would use the product rule. so u = x2 and v = ln(4x) du/dx = 2x and dv/du = 1/x which gives; x2.1/x + ln(4x).2x = x + 2x ln(4x) ???? ii) I would start using the quotient rule, but i'm not sure where the ln comes in to it. iii) Chain rule? i cant see what you have to break it into. Are there any easy ways to learn how to differenciate logarithms and exponentials?, i dont want to learn each individual case off by heart, that would take a while. I cant seem to get my head around them.