![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
The period of y = TaNx + Cotx Original formula = SiNx / cosx + cosx / SiNx =(SiNx square + cosx Square) / sinxcosx =1／sinxcosx =2／sin2x So the minimum positive period is 2 pies / 2 = pies Is that right?
That's right
Definition field of function y = √ 1-lgx
First of all, the root sign is greater than or equal to 0
That is 1-lgx > = 0
lgx
The definition field of function y = √ 1-lgx is
1-lgx ≥ 0, LG ≤ 1, the solution is 0
The common logarithm is 10. LG10 = 1
RELATED INFORMATIONS
- 1. What is the domain of the function y = lgx ^ 2? Ar B (0, positive infinity) C (negative infinity, 0) d {x | x is not equal to 0}
- 2. The monotone increasing interval of function f (x) = xlnx on (0,5) is______ ．
- 3. Proving inequality with mean value theorem X > 3-1 / X (x > 0)
- 4. Solution set of inequality 3-10x-8x & # 178; > 0
- 5. Solution to inequality: (number shape combination) x & # 178; - 6x + 9 ≤ 0 Is it less than or equal to zero or less than or equal to zero?
- 6. Let the 3x-1 power of inequality 2 be greater than 2, and the value of X is?
- 7. The fourth power of a + the square of 4A + 1 = 0 to find the process of ① a square + the square of a, ② a fourth power + the fourth power of a, ③ a octave + the eighth power of A
- 8. The second power of (- 2 times the third power of 10)=
- 9. Along the slope of 1000m long and 250m high, a mine car weighing 6 times 10 cubic n is driven from the slope at the speed of 2m per second If the pulling force is 2 times the third power of 10, find the time from the bottom of the slope to the top of the slope; (2) the work done by Larry; (3) the work done by pulling force
- 10. Solving inequality system: {4x-35 - [(1 / 2) x]
- 11. If the function FX = ax * 2 + BX is odd when x belongs to [b-1,2b], then the range of FX is
- 12. If 2lg (X-Y / 2 = lgx + lgY), then x / y? If 2lg (X-Y) / 2 = lgx + lgY, then x / y?
- 13. If 2lg (X-Y) / 2 = lgx + lgY, find X / y
- 14. If 2lg (X-Y) = lgx + lgY, then the value of X / Y=
- 15. Given lgx + lgY = 2lg (x-2y), the value of log2 ^ (x / y) is
- 16. If 2lg (x-2y) = lgx + lgY, then log2xy=______ ．
- 17. (log43 + log83) · (log32 + log92) - Log1 / 2 × 4 times √ 32 + 5 ^ log259 simplification
- 18. The increasing interval of the square of function y = - X - 2x + 8 is answer
- 19. The square + 2x - 3 of function y = x has a minimum at point x = ()
- 20. Given the function f (x) = log4 (4 ^ x + 1), let H (x) = log4 (a * 2 ^ x-3a / 4), if the image of function f (x) and H (x) has and only has one common point Find the value range of a