What does the negative direction of LIM x tend to be 1 arctan [1 / ln (1-x)] equal to

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• 1. Find Lim e ^ (1 / x ^ 2) * arctan ((x ^ 2 + 2-1) / (x + 1) * (X-2)) when x approaches 0, - 1,2
• 2. Can x → 0 Lim arctan (SiNx / x) be written as arctan LIM (SiNx / x)? Can Lim ln (SiNx / x) be written in this form? Why?
• 3. lim（x→0）（（arctan（x∧2））╱（sin（x╱2）sinx））
• 4. LIM (arctan x-x) / SiNx ^ 3 x tends to 0, can we use the substitution of equivalent infinitesimal to solve The answer is - 1 / 3, according to the law of lobita In addition, I use the Equivalent Infinitesimal Substitution, the result is - 1 / 6 =(sin x-x) / SiN x ^ 3 x tends to zero =(cosx-1) / [(cosx ^ 3) * 3x ^ 2] x tends to 0 =(- 1 / 2) x ^ 2 / [(cosx ^ 3) * 3x ^ 2] x tends to 0 =(- 1 / 2) / 3cosx ^ 3 x tends to zero =-1/6
• 5. The calculation limit is 2 / X of LIM (n →∞) (1 + 2x) （x→∞）
• 6. Find the following limit, Lim e ^ (1 / 2x), X → 0 Please give the specific steps,
• 7. lim(1+4+7+… +(3n-2))/(7n^2-5n),
• 8. limn→∞[11•4+14•7+17•10+… +1(3n−2)(3n+1)]=______ ．
• 9. Fill in the blanks LIM (n →∞) = √ (3N ^ 2 + 6N + 5) / (3n-2)=____ How to calculate this problem?
• 10. lim n->0 (1+3n/1)^3n = ? lim n->0 (1+3n/1)^3n = ?
• 11. lim(x→+∞)〖x(π/2-arctan x)〗
• 12. lim(x→+∞) (2/π arctan X)^X
• 13. Find the limit Lim ┬ (x → 0) &; ((Tan &; x-sin &; x) / ln &; (1 + x ^ 3)) lim┬(x→0)⁡〖(x-sin⁡x)/x^3 〗
• 14. lim （x→0+）tan x/x=
• 15. Find Lim x → 0 [x * (Cotx) - 1] / (x ^ 2) Thank you for the answer to this question. Urgent, online, etc.! ~ not many points, forgive me!
• 16. What do we have in common with the square B 2c of a and the square B cube of a? (1) both__ Both are__ It's the same What is the common point between the square C of the square B of the monomial 2 A and the square B cube of a? (1) All of them__ Both are__ type
• 17. Comparison of rational numbers: two numbers with different signs_________ The absolute value of two non negative numbers is smaller
• 18. Comparing two negative numbers, the one with larger absolute value () and the one with smaller absolute value ()
• 19. The absolute value of a positive number is an integer, and the absolute value of a negative number is also a positive number. Is that right?
• 20. The absolute value of the number 5 is 5, which is itself; the absolute value of the number - 5 is 5, which is its opposite number; the above comes from the theorem that the absolute value of a non negative number equals itself, and the absolute value of a non positive number equals its opposite number______ The absolute value of negative number - B is______ The absolute value of negative number 1 + A is______ The absolute value of positive number - A + 1______ ．