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1 year ago

Integrate this y=2x In(x²) at point x=3

Mathematics

1 answer:

vagabundo [1.1K]1 year ago

8 0

Answer:

Step-by-step explanation:

y=∫ln(x^2) (2x) dx

=ln (x^2) (x^2)-∫(2x/x^2) (x^2) dx+c

=x² ln (x²)-∫2x dx+c

=x²ln(x²)-x²+c

=x²[ln(x²)-1]+c

integration is between an interval so don't understand at x=3

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PLEASE HELPP !! The ceiling of Stacy's living room is a square that is 25 ft long on each side. Stacy knows the diagonal of the

EleoNora [17]

Answer:

a) d = 36 ft. ( using Pithagoras´theorem )

b) d = 36 ft ( Using ( function sin ) trigonometry

Step-by-step explanation:

a) Using Pythagoras´Theorem:

Diagonal (d) is the hypothenuse of a right triangle of side 25 feet, and according to Pythagoras´Theorem in a right triangle.

d² = a² + b²

In this particular case a = b = 25 feet then

d² = (25)² + ( 25)²

d = √ 2 * (25)²

d = √2 * 25

d = 1,414*25

d = 35,35

d = 36 ft.

b) Using trigonometry:

We know that sin 45° = cos 45° = √2 / 2

In a right triangle

sin α = opposite side / hypothenuse (d)

sin 45° = √2 / 2 = 25/ d

√2 *d = 2* 25

d = 50/√2

d = 50 / 1,414

d = 35,36

d = 36 ft

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3 years ago

The screen on Lin's cell phone allows for 8 lins of text per message. The maximum number of characters for each message is 10. H

julia-pushkina [17]

There will 80 characters per each line hold. Hope it help!

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3 years ago

Someone please tell me what to do

kifflom [539]

For this, we need to find the area of the larger rectangle (The room) and subtract from that the area of the smaller, shaded rectangle (The rug).
A=LW (L=Length, W=Width, A=Area)

The larger rectangle first:
A=(15)(10)
A=150 feet squared

Now the Rug:
A=(12)(7)
A=84 feet squared

Now to find the area that is NOT covered by the rug, we subtract:
150-84
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3 years ago

A fence around a rock garden is the shape of a right triangle.two angles measure 30 and 60 degrees.two sides measure 10 feet and

sveticcg [70]

All you gotta do is add up the two sides and then subtract it from 47.3 .
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2 years ago

36.00x0.07 show explanation

makkiz [27]

Answer: 2.52

Step-by-step explanation: 36.00x0.07

36.00 is the same as 36

so, 36x0.07=2.52

5 0

1 year ago

Integrate this y=2x In(x²) at point x=3​

Integrate this y=2x In(x²) at point x=3