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[DOC File]Lesson 11
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Use the square root key on the calculator to find a closer approximation. Estimate the following values (Between which two whole numbers). a. b. c. Note: You cannot have a negative number under the square root sign. For example: is not a real number since you cannot square any number and get a negative number. Rules of Simplification ...
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[DOC File]Simplify Each Radical:
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You can’t take the square root of -36 (or of any other negative number). Think about it. 36 = ± 6, because 6 · 6 = 36 and -6 · -6 = 36. But you cannot multiply a number by itself and get a negative number. We use the imaginary unit i to write the square root of any negative number. √-1 = i √-36 ( √36 · -1 ( 6i . Simplify Each Radical:
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[DOC File]Algebra 2 - EPSD
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Negative Radical Expressions Vocab The principal root is the positive root of a number that has a positive and negative root. Property: nth root of . For any negative real number , when is even. Ex: Simplify each radical expression. HW: _____ Algebra 2 Name_____
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[DOC File]EXPONENTS, SQUARE ROOTS AND RADICALS
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= 13 square root is a whole number. Example 4: = When a number will not result in a perfect square, it can be estimated or a calculator with the (square root) function can be used. Example 5: ≈ 6.3 because, = 6 and = 7, since 40 is closer to 36, the square root will be closer to 6. On a calculator using the key, the rounded answer is 6.325.
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[DOC File]Name______________________________
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Introduction to Square Roots. Taking the square root of a number is the opposite of squaring the number. Even your calculator knows this because . x2. has above it. To find a square root, hit 2nd button , select , put the number in, close the parentheses and hit enter! Every positive number has two square roots: one positive and one negative ...
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[DOC File]Raleigh Charter High School
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For example, 2 and -2 are both square roots of 4. They are also fourth roots of 16. We now introduce the concept of the principal root. Root. If n is even and a is positive, then . is the principal root of a, and . is the negative root of a. If n is even and a is negative, then. is not a real number. If n is odd, then. there is exactly one root ...
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[DOC File]Worksheet 31 (6
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square root of a number . is one of its two equal factors. EX. 5 is a square root of 25 because 5 5 = 25,-5 is a square root of 25 because (-5)(-5) = 25. The symbol is called a . radical sign. and is used to designate the nonnegative square root. The . radicand. is the number under the radical sign. EX. inthe. radicand is 25. The entire ...
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[DOC File]Simplify Each Radical:
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You can’t take the square root of -36 (or of any other negative number). Think about it. 36 = ± 6, because 6 · 6 = 36 and -6 · -6 = 36. But you cannot multiply a number by itself and get a negative number. We use the imaginary unit i to write the square root of any negative number. √-1 = i √-36 ( √36 · -1 ( 6i . Simplify Each Radical:
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[DOC File]Chapter 3-1 Guided Notes Name___________________ Square …
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Perfect Square- numbers such as 1, 4, 9, 16, and 25 are called perfect squares because they are squares of _____ numbers. They have no decimals in the answer. Square Root- The opposite of _____ a number. One of the two equal factors. Radical Sign- _____is used to indicate the positive square root.
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Simplify negative square root