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### Algebra Precalculus - Rules For Squaring Or Making Square Root ...

Mar 29, 2018 ... I wonder if there are precise rules for squaring or making square root in both sides of an equation when we are playing with complex ...
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### Square Root Law For Communication With Low Probability Of Detection ...

We present a square root limit on low probability of detection (LPD) communication over additive white Gaussian noise (AWGN) channels. Specifically, if a warden has an AWGN channel to the transmitter with non-zero noise power, we prove that o(√n) bits can be sent from the transmitter to the receiver in n AWGN channel uses with probability of detection by the warden less than e for any ϵ >; 0, and, if a lower bound on the noise power on the warden's channel is known, then O(√n) bits can be covertly sent in n channel uses. Conversely, trying to transmit more than O(√n) bits either results in detection by the warden with probability one or a non-zero probability of decoding error as n → ∞. Further, we show that LPD communication on the AWGN channel allows one to send a nonzero symbol on every channel use, in contrast to what might be expected from the square root law found recently in image-based steganography. We present a square root limit on low probability of detection (LPD) communication over additive white Gaussian noise (AWGN) channels.
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### Square Roots And The GRE - GRE

Have you ever gotten a GRE question wrong because you thought you were supposed to take a square root and get two different numbers but the answer key Apr 4, 2014 ... There are a couple of rules we need to keep straight in terms of how ... “All positive numbers have two square roots, one positive and one ...
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### Operations With Square Roots

You can add or subtract square roots themselves only if the values under the radical sign are equal. Then simply add or subtract the coefficients (numbers in ...
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### Square Root - Wikipedia

In mathematics, a square root of a number x is a number y such that y2 = x; in other words, a number y whose square is x. For example, 4 and −4 are square ...
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### What's The Deal With Square Roots On The GMAT?

Here’s one of the most common math questions my students ask: “What’s up with negative numbers and square roots on the GMAT?” Luckily, the answer doesn’t involve a lot of complex rules. In this quick article, I’ll lay out the issues surrounding square roots and negative numbers, and share everything you need to know to handle them confidently. May 1, 2017 ... Luckily, the answer doesn't involve a lot of complex rules. ... When the GMAT gives you a square root symbol, it's referring to one specific ...
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### Positive And Negative Square Roots On The GRE - Magoosh Blog ...

Can a square root be negative? Yes. How do you handle negative square roots on the GRE? This depends on the symbols in the negative roots question itself. Sep 7, 2016 ... Can a square root be negative? Well, the answer is: it depends on what was printed in the problem. The principal square root symbol never has a ...
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### Square Root: Sign, Rules & Problems - Video & Lesson Transcript ...

Square roots are one type of mathematical notation. Learn the sign for square roots, the rules they follow, and use example problems to practice... Oct 9, 2021 ... As for square roots, a number r is a square root of a number x if r^2 = x. Based on this definition, a positive number actually has two square ...
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### Squares And Square Roots In Algebra

The Square Root Symbol. radical symbol. This is the special symbol that means "square root", it is like a tick,
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### How To Use Math Root Rules - Dummies

When using math root rules, first note that you can’t have a negative number under a square root or any other even number root — at least, not in basic calculus. Here are a couple of easy rules to begin with:
But you knew that, right?
To multiply roots:
To divide roots:
To find the root of a root, you multiply the root indexes:
If you have an even number root, you need the absolute value bars on the answer because, whether a is positive or negative, the answer is positive.
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### Square Root Rules - MathLearnIt.com

When looking to solve or simplify terms involving square roots, there are some square root rules that are useful to know. For the following situations, a, b, ...
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