It is known that the set a = {a} has a unique real solution to the equation x & # 178; - 2 / 2 x + a = 1 of X}, and the set a is represented by enumeration
The answer is a = {a | a = - radical 2}
RELATED INFORMATIONS
- 1. Thank you so much for telling me the meaning of imaginary root
- 2. What is an imaginary number? Is the square root of a negative real number an imaginary number? Some people say that negative numbers have no square root. Others say that the square root of negative numbers is imaginary. Which one is right?
- 3. The square root of an imaginary number is still an imaginary number. What's wrong?
- 4. The roots of imaginary numbers for solving equations -5x square + 8x-5
- 5. If the intersection of the line y = K (x-1) + 1 and the circle x ^ 2 + y ^ 2-4x-12 = 0 is in the third quadrant, then the value range of the real number k is? Yes?
- 6. As shown in the figure, the center of the small circle is at the origin, the radius is 3, the center coordinates of the big circle are (a, 0) and the radius is 5. If there are two circles, then the value range of a is______ .
- 7. The equation of a circle whose center is at the origin and whose circumference is divided into 1:2 parts by a straight line 3x + 4Y + 15 = 0 is______ .
- 8. If the origin is outside the circle x ^ 2 + y ^ 2 + 2x + 4y-a = 0, then the value range of a is 0
- 9. If the distance between any point on the circle (x-1) ^ 2 + (Y-1) ^ 2 = R ^ 2 (r > 0) and the origin is 1, the value range of R can be obtained
- 10. The minimum value of function y = (SiN x) ^ 4 + (COS x) ^ 2, X ∈ [0,6 / π] is -——
- 11. Is it possible for the roots of a quadratic equation of one variable of complex number to be a real number and an imaginary number? I just learned plural. I hope you can take care of me!
- 12. What are real numbers and imaginary numbers?
- 13. Does the equation of imaginary number have a real root and an imaginary root?
- 14. How to find the root of imaginary number and the number of roots of higher order equation? For example, if x ^ 3-4x ^ 2-3x + 2 = 0, how can we know that it has several imaginary solutions and several real solutions?
- 15. Help me look at some math problems! It's a process (2xy-y) - (- y + YX) =? 5 (a squared b-3ab squared) - 2 (a squared b-7ab squared) =? First simplify, then evaluate (4a + 3a square-3 + 3A cube) - (- A + 4A cube), where a = - 2: 1 2X squared y-2xy squared - [(- 3x squared y squared + 3x squared y) + (3x squared y squared - 3xy squared)] Where x = - 1, y = 2
- 16. In the quadrilateral ABCD, EF divides AB into three equal parts and Mn divides DC into three equal parts
- 17. The taxi charge standard of a city is: the starting price is 3 km 5 yuan, more than 3 km, 1 km plus 1 yuan during the day; after 10 pm, 1.2 yuan per km At 22:15, Aunt Wang took a taxi to the fire station for a total of 7.8 kilometers. How much should Aunt Wang pay?
- 18. If the quadrilateral ABCD is a square and the triangle EBC is an equilateral triangle, then the degree of angle X is () degrees
- 19. It takes 26 seconds for a train to pass the 396 meter bridge and 18 seconds to pass the 252 meter tunnel. How long is the train's body?
- 20. Use 11 squares with a perimeter of 8 decimeters to form a rectangle. What is the perimeter and area of the rectangle?