2 years ago

Given z1= sqrt 2 (cos(3pi/4)+ i sin (3pi/4)) and z2= (cos(pi/2)+ i sin (pi/2)), what is the value of z1-z2?

Mathematics

1 answer:

Kaylis [27]2 years ago

6 0

Answer:

Answer is B

Step-by-step explanation:

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Solve -31-4x=-5-5(1+5x)

MrRa [10]

-31 - 4x = 5 - 5 ( 1 + 5x )
-31 - 4x = 5 - 5 - 25x
-31 - 4x = -25x
+ 31 to both sides
-4x = 6
/ -4 to both sides
x = 6/-4 = 3/-2

4 0

2 years ago

Read 2 more answers

Hii! I need some help, would anyone mind helping me?

Kisachek [45]

Step-by-step explanation:

${x}^{2} - 14x - 25 {y}^{2} + 100y = 76$

Factor by grouping,

$( {x}^{2} - 14x) - (25 {y}^{2} - 100y) = 76$

Complete the square, with the x variables,

$( {x}^{2} - 14x + 49) - (25 {y}^{2} - 100y) = 125$

Factor out 25 for the y variables

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y) = 125$

Complete the square

$( {x}^{2} - 14x + 49) - 25( {y}^{2} - 4y + 4) = 25$

Simplify the perfect square trinomial

$(x - 7) {}^{2} - 25(y - 2) {}^{2} = 25$

Make the right side be 1 so divide everything by 25.

$\frac{(x - 7) {}^{2} }{25} - (y - 2) {}^{2} = 1$

Here our center is (7,2).

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1 year ago

If you know that the exact volume of a cylinder is 500 π cm3, how can you find the approximate volume, without knowing the heigh

OLga [1]

The formula for the volume of a cylinder ( V=πr2h) is useable to find the missing height. Then, to find the radius, use the equation, r = square root of (V / (pi x h)). Plug your numbers into the equation and solve.

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2 years ago

The vertices of the triangle are given. determine whether the triangle is an acute traignel, obtuse triangle

Brrunno [24]

What are the angles?

if all of them are below 90 degrees, it is acute.

if one angle is 90 degress, it is right

if one angle is more than 90 degrees, it is obtuse

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2 years ago

What is the complete factorization of x^2 - 6x + 9

Finger [1]

Answer:

$(x-3)^{2}$

Step-by-step explanation:

Factor using the perfect square rule.

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2 years ago