2 years ago

Whats the producr of -2x cubed + x - 5?

Mathematics

1 answer:

baherus [9]2 years ago

4 0

The answer is -2x^3+10x^2

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aniked [119]

Parameterize the surface by

$\mathbf r(s,t)=(1-s)(0,0,12)+s\bigg((1-t)(1,0,0)+t(0,-2,0)\bigg)$
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where $(s,t)\in(0,1)\times(0,1)$ . We have

$\|\mathbf r_s\times\mathbf r_t\|=\|(1-t,-2t,-12)\times(-s,-2s,0)\|=2\sqrt{181}s$

The surface integral is then

$\displaystyle\iint_Sx\,\mathrm dS=2\sqrt{181}\int_{s=0}^{s=1}\int_{t=0}^{t=1}s(s-st)\,\mathrm dt\,\mathrm ds$
$=\displaystyle2\sqrt{181}\left(\int_{s=0}^{s=1}s^2\,\mathrm ds\right)\left(\int_{t=0}^{t=1}(1-t)\,\mathrm dt\right)$
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sleet_krkn [62]

18/12= 1.5
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Step-by-step explanation:

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2 years ago

Whats the producr of -2x cubed + x - 5?​

Whats the producr of -2x cubed + x - 5?