Advanced limit questions lim(x,y)->(0,0) x^2y^2 ln(x^2+y^2) Ask for advice
The answer is 0
First, when 0
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- 2. Answers to the extreme exercises of advanced mathematics Advanced calculus Volume 1, higher education press, edited by Yao Mengchen, Second Edition, Chapter 1, answers to extreme exercises, 22 questions (21) (25) (30), (21) (1 + 1 / N) to the power of N + m, the limit when n tends to infinity The limit of (25) (SiN x - sin a) / (x-a) when x tends to a The limit of (30) ln (1 + 2x) / tan4x when x tends to zero Question 21 seems wrong I haven't learned the theorem of question 30. I don't know how to write symbols
- 3. We know that the first power of 2 = 2, the second power = 4, the third power of 2 = 8,... (please explain it carefully, because I want to give a speech) (1) Can you infer from this the number of the 64 th power of 2? (2) According to the above conclusion, combined with the calculation, please estimate the numbers of (2 + 1) × (2 + 1) × (4 power of 2 + 1). (64 power of 2 + 1)? The second question, please use the square difference formula to solve!
- 4. Limit problems of Higher Mathematics Very simple limit problem, limit symbol is not written in Chinese oral What is sin1 / X equal to when x tends to zero from negative When x goes from positive to zero, it doesn't equal 0. What does sin1 / X equal
- 5. We know the square of W + W = 1. Evaluation: the square of 1-w-w + the third power of W - the fourth power of W - the fifth power of W + the sixth power of W - the seventh power of W - the eighth power of W
- 6. 0.59 square meter =? Square decimeter?
- 7. 0.254 square meters = () square decimeters
- 8. (2x minus 3) squared equals (minus 7) squared
- 9. We know that a square plus two a plus one is equal to zero, and we can find the square of two a plus four a minus three
- 10. Given that a plus B equals 4 and a minus B equals 3, then the square of a minus the square of B equals 4
- 11. If the third power of - A, the second power of B and the m power of 4A, the n power of B are the same kind of terms, find the value of N-M
- 12. In the equal ratio sequence {an}, the 7th power of a + the 6th power of a = 5, the 4th power of a + the 15th power of a = 5, then the 20th power of a / the 10th power of a =?
- 13. Ask a limit problem of higher mathematics The calculation of LIM (x) tends to 2) x2-x-2 / x2-4 (Note: x2-x-2 divides x2-4) The calculation of LIM (x) tends to 2) x2-x-2 / x2-4 (Note: x2-x-2 divides x2-4)
- 14. The number sequence, - 15 * (5 / 6) of (n minus 1 power) + 1, when n is equal to what, the sum of the number sequence is the smallest
- 15. LIM (x - > - 8) [SQR (1-x) - 3] / [2 + cubic root x] What else can we do besides using the law of lobita?
- 16. The divisor 30 is taken as 3. The result quotient is 93 and the remainder is 1. What is the correct quotient and remainder?
- 17. Ask a question about the limit of high number lim (x4*sin(1/x)+ex-e(-x)-2*x)/(sinx*sinx*sinx) x->0 Where X4 is the fourth power of X, ex is the x power of E, and E (- x) is the - x power of E lim ((x^4)*sin(1/x)+e^x-e^(-x)-2*x)/(sinx*sinx*sinx) x->0 yes
- 18. When doing homework, one student regarded divisor 30 as 3. The result showed that the quotient was 93 and the remainder was 1. What are the correct quotient and remainder?
- 19. A question about the limit of higher numbers Ax ^ 3-2x ^ 2 + X + 1) / (3x ^ 2-bx + 3) = 2 / 3, x approaches infinity, find a and B The original question is wrong,
- 20. Given a = 5 ^ 1992 + 1 / 2 * 5 ^ 1990 + 3 / 2 * 5 ^ 1991 + 5, then the remainder of a divided by 3 is ()