a) Sketch the region R bounded by y = x² +3, x-axis, x = 1 and r = 2. Find, %3D (i) the area of the region R.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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7.
(a) Sketch the region R bounded by y = r² + 3, x-axis, x = 1 and r = 2.
Find,
(i) the area of the region R.
(ii) the volume of the solid obtained by rotating the region R about the
line y = 7.
(b) Find the surface area obtained by rotating the curve x = V4y – y²,
1<y<2 about the y-axis.
Transcribed Image Text:7. (a) Sketch the region R bounded by y = r² + 3, x-axis, x = 1 and r = 2. Find, (i) the area of the region R. (ii) the volume of the solid obtained by rotating the region R about the line y = 7. (b) Find the surface area obtained by rotating the curve x = V4y – y², 1<y<2 about the y-axis.
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