Use the number 3, 3, 5, and 6 only once, along with +, -, ×, ÷, or () to get a result of 3

Mathematics

1 answer:

gayaneshka [121]2 years ago

4 0

Answer:

5 x 3 + 3 divided by 6 = 3

Step-by-step explanation:

The first thing is to find a way to arrange the numbers. Try every operation until you can get the answer. for this case, i put the answer above.

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a. Parameterize $C$ by

$\vec r(t)=(1-t)(5\,\vec\imath)+t(2\,\vec\jmath)=(5-5t)\,\vec\imath+2t\,\vec\jmath$

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$\displaystyle\int_C\vec F(x,y)\cdot\mathrm d\vec r=\int_0^1\vec F(x(t),y(t))\cdot\frac{\mathrm d\vec r(t)}{\mathrm dt}\,\mathrm dt$

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d. Notice that we can write the line integral as

$\displaystyle\int_C\vecF\cdot\mathrm d\vec r=\int_C(-y\,\mathrm dx+x\,\mathrm dy)$

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$\displaystyle\iint_D\left(\frac{\partial x}{\partial x}-\frac{\partial(-y)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=2\iint_D\mathrm dx\,\mathrm dy$

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