21. Which test is inconclusive for this series? A. Integral Test B. p-Series Test C. Comparison Test D. All of the Above E. None of the Above25. " an X" has a radius of convergence of 4 . What is the radius of convergence of [n=, nand" -1? A. Indeterminable B. 4 C. 2 D. 5 E. 327. Convert 32 + Vx2 + ) + tan + 2x to polar coordinates. A. 3r-cos2 (0) +r+ 0+2r-sin2(0) B. 3r sin?(0) +r+ 0+2r-cos2(0) C. 3rsin?(0) +r+ 0+2rcos (0) D. 97 sin? (O) +r+ 0+ 4r-cos2 (0) E. 9r cos (0) +r+ 0+4r-sin(0)30. The graph of f (x) = esin @ - 2 crosses the x-axis at one point on the interval [0, 1]. The slope of f (x) at this point is A. 1.442 B. 0.718 C. 0.785 D. 3.129 E. 0.606