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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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A diagonal of a cube measures 15 cm and the length of an edge of the cube is startroot 75 endroot cm. what is the length of the
Veseljchak [2.6K]

A cube is a three-dimensional solid object having six square faces. The measure of the length of the diagonal of the face of the cube is 12.2 cm.

<h3>What is a cube?</h3>

A cube is a three-dimensional solid object having six square faces, facets, or sides, three of which meet at each vertex. The cube is one of the five Platonic solids and the only regular hexahedron.

Given the length of an edge of the cube is √75 cm, therefore, the length of the diagonal of the face of the cube will be √2 times the length of an edge of the cube. Thus, the measure of the length of the diagonal of the face of the cube is,

Length of the diagonal of the face = √2 × √75 = 12.2 cm

Hence, the measure of the length of the diagonal of the face of the cube is 12.2 cm.

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Find the dinmeter of a cirele with a circumference, C, of 73 cm. Help will give brainlist if get correct answer
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Answer:

73/3.14=23.2484076433

Step-by-step explanation:

Divide the circumference by π, or 3.14 for an estimation.

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