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AlexFokin [52]
3 years ago
11

What is the conjugate? a-√a-1

Mathematics
1 answer:
aniked [119]3 years ago
4 0

Answer:

a – bi  is a + bi.

Step-by-step explanation:

The complex conjugate of a + bi  is a – bi, and similarly the complex conjugate of a a – bi  is a + bi.

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Identify the figure that illustrates "a reflection in line k."
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A

Step-by-step explanation:

8 0
3 years ago
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Use cylindrical coordinates. Find the volume of the solid that lies within both the cylinder x2 y2
Sedaia [141]

Answer:

hello your question is incomplete here is the complete question

Use cylindrical coordinates Find the volume of the solid that lies within both the cylinder x^2 + y^2=16 and the sphere x^2 + y^2 + Z^2= 81

Answer : \frac{4 \pi }{3} [729 - 65\sqrt{65} ]

Step-by-step explanation:

The given data

cylinder  = x^2 + y^2 = 16

sphere = x^2 + y^2 +z^2 = 81

from the given data the solid is symmetric around the xy plane hence we will calculate half the solid volume above the plane then  multiply the sesult by 2

Note : we are restricting our attention to the cylinder  x^2 + y^2 = 16 and also finding the volume inside the sphere which gives bound on the z-coordinate as well

the r parameter goes from 0 to 4

ATTACHED IS THE REMAINING PART OF THE SOLUTION

showing the integration

5 0
4 years ago
Evaluate each rational expression using given values
Anestetic [448]

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

8 0
3 years ago
Here is an easy one
kvv77 [185]
Remember that the angles of a triangle is 180 so:

(7x+8) + (5x+2) + (7x-1) = 180
7x+8+5x+2+7x-1=180
7x+5x+7x=180-8-2+1
19x=171
X= 171/19
X=9

Therefore x=9
7 0
3 years ago
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kirza4 [7]

Answer: The correct answer is the second one

Step-by-step explanation:

8 0
3 years ago
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