Consider the region bounded by y = ²+1, y = 1, and y-axis. Using the Cylindrical Shell Method, which definite integral gives the volume of the solid when the said region is revolved about the y -axis? (1 + In y)²dy of (1. Off (1 - Iny)² dy ○ſ 2nx(1 − c²+¹) dx 22(e²+1-1)dr

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