1) A parabolic shaped vessel is such hthat when it contains liquid to a depth of ycm, the volume of the liquid is 0.75y^4 cm^3. liquid is poured into the vessel at the rate of 40cm^3 per minute, at what rate is the level of the lqiuid rising when the depth of the liquid is 6cm.
2)a cone with...
<!-- / icon and title --><!-- message -->hey! i was wondering if anyone has any ext. 1 maths book recommendations [eg. excel]..i'm looking a book with more complex/hard exercises, worked solutions and explanations/summaries on each topic