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slava [35]
3 years ago
9

Given the function fx) = 5x² - 9x + 18, find f (3).

Mathematics
1 answer:
Pavel [41]3 years ago
8 0

Answer:

f(36)

Step-by-step explanation:

f(3)=5(3)²-9(3)+18

f(3)=5(9)-27+18

f(3)=45-27+18

f(3)=36

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∫∫(x+y)dxdy ,d là miền giới hạn bởi x²+y²=1
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It looks like you want to compute the double integral

\displaystyle \iint_D (x+y) \,\mathrm dx\,\mathrm dy

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Convert to polar coordinates, in which <em>D</em> is given by the set

<em>D</em> = {(<em>r</em>, <em>θ</em>) : 0 ≤ <em>r</em> ≤ 1 and 0 ≤ <em>θ</em> ≤ 2<em>π</em>}

and

<em>x</em> = <em>r</em> cos(<em>θ</em>)

<em>y</em> = <em>r</em> sin(<em>θ</em>)

d<em>x</em> d<em>y</em> = <em>r</em> d<em>r</em> d<em>θ</em>

Then the integral is

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Suppose the sum of two integers is negative. Must both integers be negative? Explain.
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Answer:

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Let me know if you'd  like more examples. Hope this helps!! Sorry if it is confusing I can explain you in a more simpler way if you'd like.

Step-by-step explanation:

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2 years ago
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