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Nataly [62]
3 years ago
13

Find ∫^[infinity]_-[infinity] x/(1+x^2)^2 dx.

Mathematics
1 answer:
son4ous [18]3 years ago
3 0

Answer:

Step-by-step explanation:

integral(x/(1+x^2)^2)dx

=(1/2)integral(2x/(1+x^2)^2)dx

=(1/2)[-1/(1+x^2)] +c

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Find the lateral area and surface area of a cone with a radius of 12 and a height of 21
marishachu [46]

Answer:

The Lateral Surface Area is 911.32 square unit and

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Step-by-step explanation:

For a given Cone

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A = πr√r² + h²

A = 3.14 × 12 × √(12)² + (21)²

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Now,

<u>For</u><u> </u><u>Total</u><u> Surface Area</u>

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A = πrl + πr²

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l² = 585

l = 24.18

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A = πrl + πr²

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A = 3.14 × 12 × 36.14

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Thus, The <u>Lateral Surface Area</u> is 911.32 square unit and <u>T</u><u>otal Surface Area</u> is 1361.7 square unit.

<u>-TheUnknownScientist</u>

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Answer:

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Anestetic [448]

Answer:

answer is a . x²-8x+16=32

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