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NeTakaya
3 years ago
13

{\sqrt{x} +1}{x-\sqrt{x} +1}" alt="\frac{\sqrt{x} +1}{x-\sqrt{x} +1}" align="absmiddle" class="latex-formula"> Với x≥0. Tìm GTLN
Mathematics
1 answer:
zubka84 [21]3 years ago
8 0

Answer:

Step-by-step explanation:

\frac{\sqrt{x}+1 }{x-\sqrt{x}+1 }=\frac{\sqrt{x}+1}{(x+1)-\sqrt{x}}\\\\=\frac{(\sqrt{x}+1)([x+1]+\sqrt{x})}{([x+1]-\sqrt{x})+([x+1)+\sqrt{x}])}\\\\=\frac{\sqrt{x}*x+\sqrt{x}*1+\sqrt{x}*\sqrt{x}+1*x+1*1+1*\sqrt{x}}{(x+1)^{2}-(\sqrt{x})^{2}}\\\\\\=\frac{x\sqrt{x}+\sqrt{x}+x+1+x+\sqrt{x}}{x^{2}+2x+1-x}\\\\=\frac{x\sqrt{x}+2\sqrt{x}+2x+1}{x^{2}+x+1}\\\\

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Mademuasel [1]

Answer:

cool thx for the points

Step-by-step explanation:

4 0
3 years ago
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How many different ways can the first twelve letters of the alphabet be arranged?
Vika [28.1K]
So there are 12 spaces right. In first blank u have a choice to fill any of the alphabet .(first twelve alphabets) <span>and it goes down to just 1 letter in the last space. but do i just multiply them.

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3 years ago
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A civil engineer is designing a public parking lot for the new town hall. The number of cars in each row should be six less than
Alexandra [31]
The new parking lot must hold twice as many cars as the previous parking lot. The previous parking lot could hold 56 cars. So this means the new parking lot must hold 2 x 56 = 112 cars

Let y represent the number of cars in each row, and x be the number of total rows in the parking lot. Since the number of cars in each row must be 6 less than the number of rows, we can write the equation as:

y = x - 6             (1)

The product of cars in each row and the number of rows will give the total number of cars. So we can write the equation as:

xy = 112           (2)

Using the above two equations, the civil engineer can find the number of rows he should include in the new parking lot.

Using the value of y from equation 1 to 2, we get:

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6 0
3 years ago
60 - 3d + 20 - 6 = 4d
iragen [17]
60-3d + 20-6 =4d
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D=74/7
4 0
3 years ago
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The teacher passed out math books. The length is 10 inches and the width is 8 inches. What is the perimeter of each book?
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Books are rectangles so that means that opposite sides are equal so if one side is 10 inches then so is the opposite side. same for the 8. the perimeter is the amount around the rectangle so you must add all sides together to find it so

10in+10in+8in+8in= 36in
8 0
3 years ago
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