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Lisa [10]
3 years ago
13

If z1=12(cos⁡55°+isin⁡55°) and z2=4(cos⁡95°+isin⁡95°), then |z1z2|=

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
8 0

Answer:

This isn't middle school

Step-by-step explanation:

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(X^2+y^2)^2 polynomial identify. Simplify
Alexxx [7]

Answer:

(x^{2}+ y^{2})^{2} =x^{4}+2x^{2}y^{2}+y^{4}

Step-by-step explanation:

(X^2+y^2)^2 polynomial identify. Simplify

i.e

(x^{2}+ y^{2})^{2} = ?

Solution:

We have the identity,

(A+B)^{2}=A^{2}+2AB+B^{2}

In the Question

A=x^{2}

B=y^{2}

Substituting in the identity we get

(x^{2}+ y^{2})^{2} =(x^{2})^{2}+2(x^{2})(y^{2})+(y^{2})^{2}

Also we have

(x^{a})^{b} =x^{a\times b}

(x^{2}+ y^{2})^{2} =x^{4}+2x^{2}y^{2}+y^{4}  Which is the required

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4 years ago
3(-1)(-1) - 2x-1x-2 + 4(-2)(-2)
BaLLatris [955]
-3x+17 because you want to simplify first by multiplying each term and then you combine like terms(x) and then you write the variable first
3 0
4 years ago
1. How could you figure out the coordinates of a reflection over the x-axis? What would the coordinates of that reflected point
zzz [600]

The reflection of a point over the x axis is given by the equation (x, y) ⇒ (x, -y).

If the point (-8,2) is reflected over the y-axis, the new point would be (8, 2)

<h3>What is a transformation?</h3>

Transformation is the movement of a point from its initial location to a new location. Types of transformation are <em>reflection, translation, rotation and dilation.</em>

The reflection of a point over the x axis is given by the equation (x, y) ⇒ (x, -y).

If the point (-8,2) is reflected over the y-axis, the new point would be (8, 2)

Find out more on transformation at: brainly.com/question/4289712

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7 0
2 years ago
Use the Phythagorean theorem to<br> find the length of the third side
Doss [256]

x =  \sqrt{69}

7 0
3 years ago
Jan had a bag of marbles. She gave half of them to James and then a third of the marbles still in the bag to pat. She then had 6
Firdavs [7]

Answer:

32 marbles

Step-by-step explanation:

Since she only has 6 left, you multiply it by 3 to get the amount she gave to Pat. Then you multiply that number by 2 to get the final amount.

6 0
3 years ago
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