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Answer link. There is no Real number whose square is -16. The principal Complex square root sqrt (-16) = 4i -4i is also a square root of -16 If a in RR then a^2 >= 0. So there is no Real square root of -16. If i is the imaginary unit, then i^2 = -1 and we find that: (4i)^2 = 4^2*i^2 = 16 * -1 = -16 So 4i is a square root of -16.
So #sqrt(16/25) = sqrt((4/5)^2) = 4/5# #-4/5# is also a square root of #16/25# , but by convention when we say the square root, we tend to mean the positive one. Answer link
2 Answers. Square root of 16 is +4 or -4. Since -4 is not a natural number, the square root can be described as an integer. bp gives a great answer. I sometimes forget that the words "square root" do not pick out the principle square root. I would have answered for √16 = 4 without thinking about the wording of the question.
Hence, the square root of 16 is 4. 3. Recap and Summary. In this lesson, we explored the concept of square roots and focused on finding the square root of 16. We learned that the square root of a number is a value that, when multiplied by itself, gives the original number. To find the square root of 16, we used the prime factorization method.
What is the square root of 0.16? Algebra Properties of Real Numbers Square Roots and Irrational Numbers. 1 ...
Explanation: note that 16 and 25 are both perfect squares. ⇒ √16 25 = ± √16 √25 ← note plus or minus. ⇒ √16 25 = ± 4 5. Answer link.
1 Answer. George C. May 30, 2015. √256 = 16. at least that's the positive square root. −16 is also a square root of 256. 162 = (−16)2 = 256. By definition, the principal square root of a number is the positive square root. The term "the square root" is commonly used to refer to the principal (positive) root though there are usually two roots.
Before diving into the square root of 102, let's first clarify what a square root is. In mathematics, the square root of a number is a value that, when multiplied by itself, gives the original number. It is denoted by the symbol √. For example, the square root of 9 is 3 because 3 × 3 = 9. Similarly, the square root of 16 is 4 because 4 × 4 ...
Guess what the square root of the irrational number is. For example, if your irrational number is 2, you might guess 1.2. Divide the initial irrational number by the guessed number. For example, 2 divided by 1.2 is 1.67. Add the resulting sum to the original guessed number. For example, 1.67 plus 1.2 is 2.87.
When you square root 16: sqrt (16) The answer is 4. It would make sense to square root 0.16 and get 0.04. In fact, that is exactly what the answer is. sqrt (0.16) =0.4 Seems easy enough. So does this mean sqrt (0.4)=0.2? NO sqrt (0.4) is basically saying sqrt (40/100) 40 is not a perfect square, so the answer would be an irrational decimal number.