GROUP WORK 2, SECTION 7.7 Comparison of Methods For each of the integrals in Problems 1-3·first sketch the corresponding area, and then approximate the area using right and left endpoint approximations and the Trapezoid Rule, all withn 4. From your sketch alone, determine if each approximation is an overestimate, an underestimate, or if there is not enough information to tell. o 1écos (tan x) dx 4 (a) What condition on a function guarantees that the right endpoint approximation is a (b) What condition on a function guarantees that the left endpoint approximation is an overestimate? (c) What condition on a function guarantees that the Trapezoidal Rule gives an overestimate? 457 ©20t2Capge L an ng. All Rights Reserved May Mg bescand,-ordepic or-to.palily wcesible website, n whole or n part