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PtichkaEL [24]
3 years ago
15

PLEASE HELP!! WILL MARK BRAINLIEST!!!!! please answer all to get brainliest!

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
5 0

Answer:

1. -1

2. n>-4

3. -5>y

4. -30>x ( i didn't know how to put the line under > but it should have a line under it)

Step-by-step explanation:

Basile [38]3 years ago
5 0

Answer:

-30

Step-by-step explanation:

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The intersection can be parameterized by

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with 0\le t.

By Stoke's theorem, the integral of \mathbf f(x,y,z)=xy\,\mathbf i+5z\,\mathbf j+7y\,\mathbf k along C is equivalent to

\displaystyle\int_C\mathbf f(x(t),y(t),z(t))\cdot\mathrm d\mathbf r(t)=\iint_S\nabla\times\mathbf f\,\mathrm dS

where S is the region bounded by C. The line integral reduces to

\displaystyle\int_0^{2\pi}(36\sin t\cos t\,\mathbf i+(25-30\cos t)\,\mathbf j+42\sin t\,\mathbf k)\cdot(-6\sin t\,\mathbf i+6\cos t\,\mathbf j+6\sin t\,\mathbf k)\,\mathrm dt
=\displaystyle\int_0^{2\pi}(54(\cos3t-\cos t)-30(3\cos2t-5\cos t+3)+(126-126\cos2t)\,\mathrm dt
=\displaystyle\int_0^{2\pi}(36+96\cos t-216\cos2t+54\cos3t)\,\mathrm dt
=72\pi
4 0
3 years ago
Pls answer both thank usm
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2 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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