1. 5 / 21 of a number is 30 / 7. What is 1 / 3 of this number 2. 32 is several times more than five out of eight There should be a formula
30/7/(5/21)*(1/3)=49/150
32/(5/8)=256/5
RELATED INFORMATIONS
- 1. How to find the answers to the limit questions of higher numbers! 1 limln(1-2x)/sinx =-2 x→0 2 limln(x+1)/x =1 x→0- Solving the process of trouble to write a little more specific ha... Thank you very much ah What is t? Can you be more specific·
- 2. Calculation (1-1 / 2) * (1-1 / 3) * (1-1 / 4) * ······· (1-1 / 2006) * (1-1 / 2007)
- 3. 7 / 8 minus a minimalist fraction, 5 / 24 plus the same fraction, the results of two calculations are the same. What is the fraction?
- 4. Limit exercises in Advanced Mathematics 【1】lim(1/n2)*cos nx=0【2】lim0.99…… 99=1 【3】 【4】 Try to prove: if the sequence xn converges, then the sequence is bounded
- 5. 2.4 × 1.02 by a simple method
- 6. If you have a fraction, if you add 1 to the numerator, it will be 2 / 7, and if you subtract 1 from the numerator, it will be 4 / 21. What's the fraction? Keep it simple. Don't make me confused
- 7. Limit problem lim(1+1/2+1/4+.+1/2^n) N → infinity LIM ((x ^ 2 - 1) / (x ^ 2 + 3)) ^ (x ^ 2 + 1) X → infinity How to write the process of these two questions?
- 8. Given that the solution of the fractional equation a + 2x + 1 = 1 about X is a non positive number, then the value range of a is______ .
- 9. 100 score calculation questions (to be simple, addition, subtraction, multiplication and division are OK)
- 10. 1. LIM (x → 0) 1-cos2x / X * SiNx [x and SiNx are together] 2. LIM (x →∞) x ^ 2 * sin ^ 2 (1 / x) [sin ^ 2 and 1 / X are together] First answer: 2 Second answer: 1
- 11. (-0.25)2006*(-4)2007
- 12. A limit problem of higher numbers Ln (x + 1) / x ^ 2-2x when x → 0 That ^ means square The answer is - 1 / 2 I want to know why
- 13. 6 out of 7 plus 2 out of 9 minus 4 out of 21
- 14. 1+2+3+```2006+2007+2008+2007+2006+```+3+2+1=?
- 15. A problem about limit of higher numbers When x tends to 2, y = the square of X When δ is equal to, then when the absolute value of X-2 is less than δ, the absolute value of y-4 is less than 0.001? 0002
- 16. Calculation (4 out of 5 minus 1 out of 7) plus 3 out of 8 =? (11 out of 21 plus 1 out of 3) minus 1 out of 6 =?
- 17. How much is 1 + 1 / 2 +. + 1 / N (expressed by formula)
- 18. A problem on the limit of higher numbers It is known that f (x) is continuous when x = 0, then if Lim [f (x) / x] exists (under the condition of X - > 0), then f (0) = 0, why?
- 19. X - 30 percent x equals 0
- 20. Continuous sum of squares, such as 1 + 2 + 3 + +N, what's the final formula,