1. According to the pity criterion, let f(x, y) be continuous on a≤x+∞, and c≤y≤d, and converge to any given y, ∫(a → +∞)f(x, y)dx. If for any given positive real number ε, there exists a positive integer A0 which is only related to ε but has nothing to do with Y, and for any AA0, c≤y≤d, there exists |∫(A → +∞) f(x, y)dx|ε, it is called a parametric variable ∫(A → +∞) f(x, ε. If Wang He and Xie have been reconciled to 100 years old, that is, Wang's interval is 55, Xie's interval is 66, take the intersection of the two as 55 and the age multiple as a,

The age ratio of Wang/Xie converges from 1.55 → 1.32, ∫ (a → 1) f (x, y)dx at 45≤y≤ 100, that is, the age multiples and mileage series of Zhang and Xie are in.

2. According to the wave equation of quantum mechanics, let the injury time be E and the psychological shadow formation time be P.

Because E=? ω，p=h/λ，？ =h/2π, δ x δ p ≥ /2=h/4π.

According to the wave equation, the psychological shadow area per second, h = 6.6438+076pin.

If the set area is F.2, the psychological shadow area of Zhang is F.2 = 6. 176 square meters.

That is, Zhang psychologically produces a shadow of 6.626 176 square meters per second, and the upper bound of convergence obtained in the solution of 1

In addition, according to Einstein's special theory of relativity, after Lorentz transformation:

That is, let Li's psychological injury time be t, and according to the relative space between Zhang and Li, we can get the relativistic factor γ: Zhang is in Hong Kong and Li is in Xinjiang, the absolute distance is 3384 kilometers, and the time difference is 7200 seconds, then γ= 1.00 1.

According to the above formula, T= 2.56t is solved, that is to say, every second that Zhang is sad, Li will be sad for 2.56 seconds. Therefore, the psychological area of Li's injury per second is F.(2)= 16.963 1 m2.

3. Excavators should be used to dig soil to fill the injured area. The volume is V, the unit area is S, and the average height of Zhang and Li is H, and H =1.78m..

That is, v = s.h = (6.626t+16.9631t) *1.78 = 41.99t, which means that the volume of psychological shadow produced by Zhang and Li is 42 cubic meters per second. The amount of work is huge, which requires high skills of excavator players. Please go to Shandong to find Lan Xiang!