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How many days are there from August 20, 2009 to February 12, 2014?
1637 days, including the first day is 1638 days
The program calculation is accurate
How many days are there from December 15, 2009 to April 3, 2011
How do you calculate it?
474 days
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- 9. It is known that the National Day in 2001 is Monday. What day is new year's day in 2002?
- 10. January 1, 2001 is Monday, so January 1, 2002 is Sunday______ ．
- 11. First simplify and then evaluate (- x ^ 3 + x ^ 2y-y ^ 3) - (x ^ 2-2xy ^ 2 + y ^ 3) + (2x ^ 2-3x ^ 2y-2xy ^ 2), x = 2009, y = - 1 / 2, Xiao Dong mistakenly copied x = 2009 to x = 2090, but the result he got was also correct. What do you mean
- 12. If the distance from point P to point F (4,0) is less than the distance from point P to line x + 5 = 0 by 1, then the trajectory equation of moving point P is______ ．
- 13. If the distance from the moving point P to the point F (1,1) and the straight line 3x + y-4 = 0 is equal, then the trajectory equation of point P is () A. 3x+y-6=0B. x-3y+2=0C. x+3y-2=0D. 3x-y+2=0
- 14. The distance between a moving point and a straight line x = 8 is twice as long as the distance between it and point a (2.0)
- 15. If the distance from the moving point m (x.y) to the fixed point (1,1) is equal to the distance from m to the fixed line X-Y plus 1 equals 0, then the trajectory equation of the moving point m is? If the distance from the moving point m (x.y) to the fixed point (1,1) is equal to the distance from m to the fixed line X-Y plus 1 equals 0, then the trajectory equation of the moving point m is
- 16. If the distance from a moving point to point (2,0) is equal to half of the distance from it to point (8,0), then the trajectory equation of a moving point is?
- 17. Find the trajectory equation of the point whose distance from the Y axis is equal to 4
- 18. The trajectory equation of a point whose distance from the X axis is equal to 2 is
- 19. If the distance from the moving point P to the x-axis is 2 less than the distance to the fixed point F (0,2), then the trajectory equation of the moving point is obtained
- 20. Teacher worldbl: the distance from the moving point m (x, y) to the y-axis is less than the distance from it to the fixed point (2,0). Find the trajectory equation of the moving point m (x, y)