12.6. Lesson 12 Problem Set (1) Estimate (26.8) using linear approximation. The computation of the approximation should not require a calculator (otherwise why even bother with an approximation!), so be sure to select the a of the linear approximation formula wisely to make that happen! (2) Estimate sin 31° using linear approximation. Use a caleulator to find the percentage error. Remember to work with radians! (3) Use linear approximation to esf sphere 20 feet in radius if the plastic is 1 inches (or 120 foot) thick (4) Find the linearization of /a) -tan r at a0. (Remember that the answer will be the equation of line.) (5) (Bonus question): Let p be fixed real mumber. Find the linearization of J(a)(1 +aP at 0