Solving complex fraction How to simplify the fractions of fractions whose internal numerator and denominator contain unknowns one ___ +1 （1+x^2) ___________________ one ___ -1 （1+x^2) one ___ +1 （1+x^2) ___________________ one ___ -1 （1+x）^2 The question just now is wrong.

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• 1. 5 out of 11 times 11 out of 15 times 11 out of 57 minus 3 out of 14 times 2 out of 3, 5 out of 7 times 14 out of 25 plus 1 out of 3 Tuoshi
• 2. A function limit problem in Advanced Mathematics Complete description of the title: Let y = sin1 / x, prove: for any number a ∈ (0,1), try to find the sequence {xn}, such that LIM (n →∞) xn → 0, and lim (n →∞) yn = LIM (n →∞) sin1 / xn = A. and give a geometric explanation for this conclusion
• 3. Are x + 1 / X and X / X fractions
• 4. 3.14 times 1 and 3 / 8 plus 0.314 times 25 / 4 minus 31.4 times 0.2 What is a number with a cube equal to 1 / 64?
• 5. The limit of higher number function 1.lim(x→0)(x^3-2x^2+3X)/(2x^4+x^3+x) 2.lim(x→0)(1-3x)^1/x -1 3.lim(x→0)[(√1+sinx)-(√1-sinx)]/x 4.lim(x→0)[ln(1-2x)]/x (depressed, I've been doing a pair of answers for a long time. I'm so sad.)
• 6. 1 / 3 plus 3 / 4, 15 / 11 minus 8 / 3, 14 / 5 plus 7 / 3, 7 / 6 minus 42 / 13, 7 / 4 plus 21 / 2 fast, urgent
• 7. High number [function limit] lim (1+1/x)=? x→∞ lim(1-3x)∧1/(2x)=? x→0 lim[(2x+3)/(2x+1)]∧(x+1) x→∞
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• 9. 14 and 21 / 8 minus 5 and 15 / 11 =?
• 10. Find the sum SN of the first n terms of sequence 2,1 / 4,4,1 / 8,6,1 / 16,..., 2n + 1 / 2 ^ (n + 1)
• 11. High number, use Taylor formula LIM (x + 1) ln (1 + 1 / x). X approaches positive infinity
• 12. 4.6 minus bracket - 3 / 4 plus 1.6 minus bracket - 3 / 4
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• 14. Proof of the existence of limit for higher numbers Let a = max {A1, A2,... Am} (AI > 0, I = 1,2,..., m), then Lim [under n-th root sign (n-th power of a1 + n-th power of A2 +... + n-th power of AM)] = a n→∞
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• 16. f(x)=x^2+bln(x+1) f(x)=x^2+bln(x+1) (2) if B = 1, we prove that for any positive integer n, the inequality ∑ f (1 / k), 1 + 1 / 2 ^ 3 + 1 / 3 ^ 3 +. + 1 / N ^ 3 I think we should use mathematical induction, but I didn't try it out Is f (1 / 1) + F (1 / 2) + F (1 / 3) +... + F (1 / N)
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• 19. F (x) = x & # 178; ten 2x + L, then f (X-5)? Do you want to put X-5 as a whole in a question like this What does f (x) matter?
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