root 2 + root 2 is equal to what?
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The square root of 2, or the (1/2)th power of 2, written in mathematics as √2 or 2​1⁄2, is the positive algebraic number that, when multiplied by itself, equals the number 2. Technically, it is called the principal square root of 2, to distinguish it from the negative number with the same property.
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In addition, a square root of a number is one of its two equal factors, for example, 2 is a square root of 4 because (2)(2) = 4, but ‒2 is also a square root of 4 because (‒2)(‒2) = 4.
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100 times 2 is equal to 200. Square root of 10^2 * 2 = 10 root 2. Therefore, 10 root 2 is the final answer.
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The answer to "2 plus what equals 0?" is -2. You know this answer is correct because 2 plus -2 equals 0.
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This result is equivalent to the square root we are trying to simplify! In this example, √72=2⋅3√2.
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If the discriminant is equal to zero, this means that the quadratic equation has two real, identical roots. Therefore, there are two real, identical roots to the quadratic equation x2 + 2x + 1. D > 0 means two real, distinct roots.
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The square root of 2 or root 2 is represented using the square root symbol √ and written as √2 whose value is 1.414. This value is widely used in mathematics.
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Introduction to Mathematics and Algebra Irrational Roots. EQUAL OR DOUBLE ROOTS. If the discriminant b2 - 4ac equals zero, the radical in the quadratic formula becomes zero. In this case the roots are equal; such roots are sometimes called double roots.
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['Put the equation into the form ax 2 + bx = – c.', 'Make sure that a = 1 (if a ≠ 1, multiply through the equation by. before proceeding).', 'Using the value of b from this new equation, add. ... ', 'Find the square root of both sides of the equation.', 'Solve the resulting equation.']
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['RT = R1 + R2 + R3.', '2 + 2 + 3 = 7 Ohms.', 'R total is 7 Ohms.']
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So 1/2+root 3 = a/b where a and b are irrationals. since rhs is a rational number root 3 should be also rational . ... So our assumption is wrong and hence we conclude that is irrational.
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['Problem 1. Solve for x: x2-15x+56 = 0. A. x = 14 or x = 4. B. x = 8 or x = 7. C. x = 28 or x = 2. ... ', 'Problem 2. Find x if 2x2+7x+4 = 0. A. - 7 ± √17 / 4. B. - 7 ± √7 / 4. C. ... ', 'Problem 3. For what value of k does the equation x2-12x+k = 0 have real and equal roots? A. B. C. D. Answer 3.']
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In general, the square root of the square of a real number is always equal to the absolute value of that number. In other words, the equation sqrt(x2) = |x| is true for all real numbers x.
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Other answers show that the square root of 2 (which is approximately 1.414) times the square root of 2, is 2. However, positive numbers have two square roots. One is positive and the other is the negative. That is, 4 has two square roots: +2 and -2.
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Example Square Roots: The 2nd root of 25, or 25 radical 2, or the square root of 25 is written as 2√25=√25=±5. The 2nd root of 100, or 100 radical 2, or the square root of 100 is written as 2√100=√100=±10.
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“2” to the “3rd” power is equal to “6”. If you break down powers to their simple form it's simply just multiplying the base number (in this case “2”) a known amount of times (in this case “3”); so 2 * 2 * 2 = 6 , if you use the multiplication table 2, 4, 6…
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For example 2x2x2x2x2=32. Next we group the twos into 2^3 and 2^2. That gives us the cube root of 8 times the cube root of 4. Since the cube root of 8 is 2, we can simplify this to 2 times the cube root of 4.