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3 years ago

Tập xác định của hám số y = cot (x- pi/6)

Mathematics

1 answer:

DENIUS [597]3 years ago

4 0

Answer:

1+1=100

Step-by-step explanation:

100/28=<u>17m0</u>

<em><u>Halimbawa</u></em><em><u>:</u></em>

<h2><em>Qpe0183</em></h2><h3><u>Uahus</u></h3>

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For the polynomial below, -1 is a zero of multiplicity of two.

mrs_skeptik [129]

Answer:

$h(x)=(x+1)^2(x-1-5i)(x-1+5i)$

Step-by-step explanation:

Given that -1 is a zero of multiplicity of two for the polynomial $h(x) = x^4+23x^2+50x+26.$ This means that $x-(-1)=x+1$ is twice the linear factor.

Rewrite the polynomial $h(x) = x^4+23x^2+50x+26$ as follows:

$h(x)\\ \\= x^4+23x^2+50x+26\\ \\=x^4+x^3-x^3-x^2+24x^2+24x+26x+26\\ \\=x^3(x+1)-x^2(x+1)+24x(x+1)+26(x+1)\\ \\=(x+1)(x^3-x^2+24x+26)\\ \\=(x+1)(x^3+x^2-2x^2-2x+26x+26)\\ \\=(x+1)(x^2(x+1)-2x(x+1)+26(x+1))\\ \\=(x+1)(x+1)(x^2-2x+26)$

Find linear factors of the quadratic polynomial $x^2-2x+26$ :

$D=(-2)^2-4\cdot 1\cdot 26=4-104=-100=100i^2\\ \\\sqrt{D}=\sqrt{100i^2}=10i\\ \\x_{1,2}=\dfrac{-(-2)\pm 10i}{2\cdot 1}=\dfrac{2\pm 10i}{2}=1\pm 5i$

Hence,

$x^2-2x+26=(x-(1+5i))(x-(1-5i))=(x-1-5i)(x-1+5i)$

and the initial polynomial factorization is

$h(x)=(x+1)^2(x-1-5i)(x-1+5i)$

5 0

3 years ago

What is the slope of a relation with ordered pairs of (-5, 3) and (4.1).

Georgia [21]

3-1 /-5-4
2/-9
-2/9 is the answer

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3 years ago

Find the volume of the cylinder in terms of pi. The diagrams are not drawn to scale.

galina1969 [7]

Answer:

Step-by-step explanation:

givens

r = 1.9 m

h = 11 m

Equation

V = pi * r^2 * h

Solution

V = pi * 1.9^2 * 11

V = pi * 3.61 * 11

V = pi * 39.71

V = 39.71 pi

6 0

3 years ago

What is the range?<br> 5 7 10 7 3 10 9 1 1 6

fenix001 [56]

Answer:

Step-by-step explanation:

10-1=9 thats how you find the range you do the highest number then the lowest number after that you subtract it

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3 years ago

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Alejandra is packing a bag for a flight. The airline has a baggage weight limit, and Alejandra has already packed her bag with s

Drupady [299]

So its X $\leq$ 30

Step-by-step explain

The x equals the unknown amount or weight of her luggage.

It has can only be 30 at most

This equation shows that

A number has to be less then or equal to 30

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2 years ago

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