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Question Number 143372 by mohammad17 last updated on 13/Jun/21

Commented by mohammad17 last updated on 13/Jun/21

$$??????$$

Answered by bramlexs22 last updated on 13/Jun/21

$$\left(1\right)vol=\pi \underset{0}{\stackrel{4}{\int }}[{\left(2\right)}^2-{\left(\sqrt{x}\right)}^2]dx$$$$=\pi {[4x-\frac{1}{2}{x}^2]}_0^4$$$$=8\pi$$$$\left(2\right)vol=\pi {\int }_0^2{y}^{4}dy=\frac{32\pi }{5}$$

Commented by mohammad17 last updated on 13/Jun/21

$$and\left(3\right),\left(4\right)sir$$

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