ABSTRACT

Determine the maximum value of C and the temperature at which it occurs. (7)

6. Determine for the curve y = 2x2 − 3x at the point (2, 2): (a) the equation of the tangent (b) the equation of the normal. (7)

7. A rectangular block of metal with a square crosssection has a total surface area of 250 cm2. Find the maximum volume of the block of metal. (7)