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aleksandrvk [35]
2 years ago
10

Sinoo prove geometrically lim sinx/x=1​

Mathematics
1 answer:
frozen [14]2 years ago
5 0
English please i dont speak Nerd im here just for point and answer good luck brotha
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Find all the zeros of <br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20%7B6x%7D%5E%7B4%7D%20%20%20-%20%20%7B7x%7D%5E%7B
Svetradugi [14.3K]

Answer:

  {-1, 1/2, 2/3, 1}

Step-by-step explanation:

I find a graphing calculator to be a most useful tool for problems like this. (See attached.)

_____

First of all, observe that the constant is -2, so 0 is not a zero.

It is often useful to look at the sum of coefficients. Here, that is 0, indicating 1 is a zero.

You can divide that out, or simply continue by looking at the sum of coefficients with odd-degree terms negated. Then you have 6 +7 -4 -7 -2 = 0, indicating -1 is also a zero.

__

At this point, it can be useful to divide out the factors you know. The synthetic division tableaus attached show that work. First is division by (x+1), then by (x -1).

The result of doing that is the quadratic ...

  6x^2 -7x +2 = 0

This can be factored ...

  (6x^2 -3x) -(4x -2) = 0 . . . . . . rewrite -7x and group term pairs

  3x(2x -1) -2(2x -1) = 0 . . . . . . . factor each pair

  (3x -2)(2x -1) = 0 . . . . . . the factorization of the remaining quadratic

The zeros of this are the values of x that make the factors zero: 2/3 and 1/2.

The zeros of the given function f(x) are x ∈ {-1, 1/2, 2/3, 1}.

5 0
3 years ago
Last year, the gym membership fee was $60. This year the fee is $48. By what percentage was the membership fee reduced​
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I think I went down by 29 dollars and 76 cent
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Is a three-digt whole number
Rudiy27

Answer:

693

Step-by-step explanation:

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out of a senior class of 100 students the.class offers (president vice president treasurer needs to be arranged.com how many dif
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The area of the rectangular sandbox at Dave's school is 117 square feet. The sandbox has a width of 9 feet as shown in the diagr
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Answer:

ay bru ima tell yu dhis rn is c

Step-by-step explanation:

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2 years ago
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