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Anna11 [10]
3 years ago
15

Solve the equation in the complex number system X^4-2x^2-3=0

Mathematics
1 answer:
Anastaziya [24]3 years ago
5 0
x^4-2x^2-3=0\\
x^4+x^2-3x^2-3=0\\
x^2(x^2+1)-3(x^2+1)=0\\
(x^2-3)(x^2+1)=0\\
x^2-3=0 \vee x^2+1=0\\
x^2=3 \vee x^2=-1\\
x=-\sqrt3 \vee x=\sqrt3 \vee x=-i \vee x=i
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Answer:

Step-by-step explanation:

If you're talking about a square, then the area would be 40.

If you're talking about a triangle, then the area would be 20.

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3 years ago
Will Give Brainliest, Answer ASAP m∠O = <br> m∠N =
irina1246 [14]

Answer:

∠ O = 61°, ∠ N = 119°

Step-by-step explanation:

In a parallelogram

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Opposite angles are congruent, thus

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3 years ago
Which is equivalent to sin-1(–0.4)?
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If point C is not located between points A and B, then AC + CB= AB
Naddik [55]

The location  AC + CB  is  mathematically given as

AC + CB= AB

This is further explained below.

<h3>What is the location  AC + CB of  AB ?</h3>

Because point C can be seen to be in between A and point B, the equation AC + CB must equal AB.

It is important to keep in mind that point C may be located in any part of the space between A and B; yet, the solution will still be considered to be AB in this scenario.

Again, AC + CB = AB.

In conclusion, By way of deduction: if point C is located between points A and B, then it follows that point C is situated on line AB conversely, if point C is not situated on line AB, then it cannot be located between points A and B. As a result, you are able to deduce that AB is a line and that point C is situated on it in the middle of points A and B.

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3 0
2 years ago
60 points!!! ASAP A store hands out 900 reward cards. Customers scan their cards in the store to find out what reward they recei
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Answer:

100 customers

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Note that when you say "The probability that a customer receives a $25 gift card is 19", I assume you mean 1/9, not 19 because probability cannot exceed 1.

There are 900 reward cards in total, which means 900 customers have a chance to receive a reward. Out of these 900 customers, 1/9 of them receive a $25 gift card, so in order to find how many receive a gift card, we do:

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Thus, 100 customers receive a $25 gift card.

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3 years ago
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