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Setler [38]
2 years ago
15

Find K by evaluating Limit

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
6 0

Answer:

4

Step-by-step explanation:

\lim_{x \to \infty}\frac{1-cos4x}{1-cos2x}= \lim_{x \to 0} \frac{(1-cos4x)'}{(1-cos2x)'}= \lim_{x \to 0}\frac{4sin4x}{2sin2x}= \lim_{x \to 0}\frac{2*2sin2xcos2x}{sin2x}\\ = \lim_{x \to 0}4cos2x\\ =4

{L'Hospital's rule}

<em>I hope this helps you</em>

<em>:)</em>

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Here are the dimensions of some rectangles. Which rectangle has an area of 12 square units and a perimeter of 14 units?
maxonik [38]

Considering the formulas for the area and the perimeter of the rectangle, the one with the desired measures is given as follows:

a length of 3 units and a width of 4 units.

<h3>What are the area and the perimeter of a rectangle?</h3>

Considering a rectangle of length l and width w, we have that:

  • A = lw.
  • P = 2(l + w).

For a rectangle with a length of 3 units and a width of 4 units, we have that:

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Hence it is the correct option.

More can be learned about the area and the perimeter of a rectangle at brainly.com/question/10489198

#SPJ1

4 0
2 years ago
X²y∧5·(–6xy∧2)
dybincka [34]

Since you are multiplying with exponents, you would add the powers. This gives you,

-6x³y⁷

7 0
3 years ago
A plane flies round-trip to Philadelphia. It flies to Philadelphia at 220 miles per hour and back home with a tailwind at 280 mi
LuckyWell [14K]
To solve the problem we will use this equation where,

d will be distance.
x is the speed of the plane without tailwind. 
y is the speed of the wind affecting the plane.
Going to Philadelphia the speed of the plane affected by wind will be x-y=220 miles/hr
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since time = distance / speed, t1 =d/220 and t2 = d/280
and since the total time traveled is 6.5hrs
d/220 + d/ 280 = 6.5hrs
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6 0
3 years ago
Classify the following expression by degree and term:x3y + 5xyz
Delvig [45]
Its B

degree is 3+1=4(highest degree) and binomial coz it has 2 terms
3 0
3 years ago
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A particular computer takes 12 minutes to download a 36​-minute TV show. How long will it take the computer to download a 2​-hou
Anestetic [448]
<span>A particular computer takes 12 minutes to download a 36​-minute TV show. How long will it take the computer to download a 2​-hour ​movie

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