Does any number have a square root?

RELATED INFORMATIONS

• 1. It is known that the square root of a positive number is 2a, 3 and 1-A
• 2. Given that the square roots of a positive number are A-3 and 4a-2, what is the value of a? What is the positive number?
• 3. Given 9 and 16, try to write a number a so that one of the three numbers is the square root of the product of the other two numbers
• 4. There are two numbers, 16 and 9. Add another number so that the square root of the product of two of them equals the other number, I don't think so. The square root of a number has two positive and negative values. Just adding one number can't satisfy it. For example, the square root of 16 × 9 is equal to plus or minus 12, and adding one number can't hold
• 5. There are numbers 4 and 9. Try to write another number so that one of the three numbers is the square root of the product of the other two numbers
• 6. Given 9 and 16, try to write a number a so that one of the three numbers is the square root of the product of the other two numbers. How many numbers can you write
• 7. There are numbers 4 and 9. Try to write another number so that one of the three numbers is the square root of the product of the other two numbers
• 8. Satisfy the square root of - 2
• 9. Given that the square roots of an integer x are a + 1 and A-3, find a and X
• 10. If x is a positive integer and the square root 15-x is an integer, ask if there is a maximum value of the square root 15-x of the formula. If so, find out the value of X at this time If not, please give reasons
• 11. Given 3 and 6, please write another number so that the square root of one of the three numbers is the product of the other two numbers
• 12. There are numbers 4 and 9. Try to write another number so that one of the three numbers is the square root of the product of the other two numbers
• 13. Write the number of two positive square roots equal to itself
• 14. The arithmetic square root of 22 / 3 and 49
• 15. Second order unit matrix square root algorithm Find a second order matrix X, so that its square is equal to the second order identity matrix, please give the algorithm Note: this problem is a numerical method problem, only need algorithm ideas, do not need code, Another problem is as follows: A and B are known matrices of NxN respectively, and finding the unknown matrix of NxN such that axa-xb = I (identity matrix) is also a numerical algorithm The two questions are very similar. They are well done, It's the best way to solve the problem in MATLAB,
• 16. Which is the function to solve the positive definite equation of coefficient matrix with square root and improved square root in MATLAB?
• 17. What number can be used for root operation?
• 18. The square root of a number 2m-6 and 3M + 1, what is the number? How to write the process
• 19. When the value of K is what, solving the fractional equation 1 / (x + 2) - K / (X-2) = 1-4x / (x ^ 2-4) will produce increasing roots
• 20. If the fractional equation 3x / X-2 + 5 = 8m / X-2 has an increasing root, then M =?