What is the simple operation of power? For example, the simple operation of addition is multiplication, and the simple operation of multiplication is power, so what is the simple operation of power?

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• 1. If the number in the quadratic root sign is negative, there is no real root. But it should also have a square root. What is its square root?
• 2. Why do negative numbers have no square root?
• 3. Is the square of a negative number positive or negative?
• 4. Square is negative, how to calculate Suppose the square of x equals - 4, then what is x equal to
• 5. What number's Square is negative?
• 6. It is known that: x2 + Y2 + 4x-6y + 13 = 0, where x and y are rational numbers, then YX=______ ．
• 7. 1、 Write five rational numbers that meet the following conditions Three of them are non positive numbers. 3. Three of them are fractions. 2. It is known that a and B are opposite to each other, C and D are reciprocal to each other, and the distance from X to the origin is 2. Find the value of a + B + CD + X Please give your answer before the evening of September 12, 2011
• 8. Do not calculate the square of 4 + 4 + the third power of 4 +. 4 the number of 50 power
• 9. If we know the rational numbers a and B, let a + B = 0 and tangent the square of (a + 2) to 0, we can find the value of the power B of A If we know the rational numbers a and B such that a + B = 0 and tangent the square of (a + 2) to 0, we can find the value of the power B of A
• 10. If the root sign (X-Y + 1) and | x + Y-3 | are opposite to each other, then the Y power of x =?
• 11. How many times do you need to pull 1000 Ramen
• 12. Given that the x power of 2 is equal to 3, the x power of 3 is equal to 7, find the x power of 12
• 13. The speed of light is about 3 * 10 to the fifth power km / s. It takes six years for the light from a star to reach the earth. If there is 3 * 10 to the seventh power / s in a year, how far is the star from the earth?
• 14. 1. Reduce the length of a rectangle with length x and width y by 1, and increase the width by 1, then its area will increase_____ . 2. If the polynomial (MX + 8) (2-3x) is expanded without x term, then M=_____ .
• 15. In (- 3 / 4) ^ 4, the base is?, the exponent is?, and the power is?
• 16. Verification: 817-279-913 can be divisible by 45
• 17. What is a scalar matrix and what is a non scalar matrix?
• 18. According to the addition of matrix and the multiplication of number and matrix, does the set of square matrices in the following real number field constitute a linear space in the real number field (1) (2) the set of all symmetric matrices of order n; (3) a is the set of known matrices of order n satisfying AX = 0
• 19. How to verify that a matrix is orthogonal?
• 20. Is the equation solvable in the complex field? Except for the class of x x = 5, including transcendental equation such as SiNx = 6, and please explain the reason (I mean that there are complex numbers satisfying the equation in theory, which need not be solved)