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Solve $$\int_0^{\frac{\pi}{2}} {{{\ln}^2}\sin XDX} = \int_0^{\frac{\pi}{2}} {{{\ln}^2}\cos XDX} $$ value.Apparently \[\int_0^{\frac{\pi}{2}} {{{\ln}^2}\sin XDX} \underline{\underline {{\text{order}x = \frac{\pi}{2}-t}}} \int_0^{\frac{\ Pi}{2}}

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Copy Code code as follows: ' Chinese name Stroke calculation (VBS script version) Dim Word,key Word=inputbox ("Please enter the text you want to calculate") If word= "" Then MsgBox "The demo is not to say you don't enter text?"

Toxophily Time Limit: 3000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 186 accepted submission (s): 106 Problem descriptionthe recreation center of whu ACM team has indoor billiards, Ping Pang, chess and

To_date ('1970-11-11 ', 'yyyy-mm-dd') // specify a date in the formatInsert into kkk (myid, myname, mydept) select empno, ename, deptno from emp where deptno = 10; // row migrationUpdate emp set (job, sal, comm) (select job, sal, comm from emp where

1. Overview There are a lot of vector computing tools in the toolbox of ArcGIS, and the grid has calculators, and it's easy to operate. Similar to the field calculator in vectors, it is calculated by constructing map algebra expressions. The

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Still do not very good, a lot of advice ah, pay attention to this aspectInitialize: Display number "dataout". Caption"for 01. Extraction of the first factorWhen the number is clicked for the first time (when the program initializes, the result is

1 mathematical function 1.1 integer function int (x) takes the largest integer not greater than X. fix (x) goes to the decimal part of X. 1.2 Absolute Value function ABS (x) to find the absolute value of x. 1.3 Symbolic function SGN (x) is