/ execute/announcement?method=search&context=mybb&cours... 4. . Find the derivative of the quotient of the following U and V functions: Y = U / V, where U = X and V = 2X + 3 5. Find (1) the different quotient and derivative when tax rate increases from 15% to 20% and (2) the maximum tax revenuebased on the following quadratic tax revenue function: R = 200t - 200t2 6. Find (i) the marginal revenue, (ii) the marginal cost, and (iii) marginal profit of the following functions: TR = 41.5Q - 1.1Q2 TC = 150 + 10Q -0.502 + 0.0203