In Exercises 815, find the first- and second-order Taylor polynomials for the given function f at the given point a.8. f(x,y)=1/(x2+y2+1), a=(0,0)9. f(x,y)=1/(x2+y2+1), a=(1,1)10. f(x,y)=e2x+y, a=(0,0) #11. f(x,y)=e2xcos3y, a=(0,)12. f(x,y,z)=ye3x+ze2y, a=(0,0,2)13. f(x,y,z)=xy3y2+2xz, a=(2,1,1)14. f(x,y,z)=1/(x2+y2+z2+1), a=(0,0,0)15. f(x,y,z)=sinxyz, a=(0,0,0) #16. Estimate the value of e0.2cos(9) using the first- and second-order Taylor polynomials found in Exercise 11.17. Estimate the value of 1/((0.1)2+(0.2)2+(0.3)2+1) using the first- and second-order Taylor polynomials found in Exercise 14. Please only solve #s 11 and 16