求下列函数的全微分.[tex=6.714x1.286]xTR7Olbvc5GCEQlehvcUYu0zkbvkIwMrNJql74MS3kAACn3++7vyvT0uFDPawhGX[/tex].
解:[tex=19.714x2.214]vqOknbXNCLW5gauKdGvzhwtLJNzUKsC6Lm6IR0T6FiYuWBXXqwHMpd92U5lXfzNFqost14WaSp4Q7Sws5MFiLM/Tav3rIrwu7I4bDqUfoWI7hYIb5Kv3ACyAZG8xMJOAEZh6uRQPAp7AZrxbvwJRl2C+dvsCcqvVu6DitEbQW73JFpr5RqjQuJCormu7yZ0p8zkiO/U2H5x3CHOh722BkA7sxZUwBLjfyFMGfHy52T0=[/tex][tex=9.5x2.143]epx73aSn6+5mVWhiq1dPpV8kE+twV5aHAgjYKqA/XFwbj0UAkUtugHb8pg6vmHEtjzwvDhd/fAE+pRTn2UGv8g==[/tex].
举一反三
- 求下列函数的微分:[tex=6.714x1.286]nqM3P/quAuEtXQWwa8IaxnCBLWJgn4ebwTYzaAdIpLnn9dGHSWHYciHksos3z+91[/tex]
- 设X,Y为两个随机变量,且P{X ³0,Y ³ 0} = 3/7 , P{X ³ 0} = P{ Y ³ 0} = 4/7 ,则P{max(X, Y) ³ 0} = ( ). A: 1/7 B: 3/7 C: 4/7 D: 5/7
- 求函数[tex=6.714x1.286]1Jc68j4u3rNu6WbjhzBf//8hACp4zD7EOhcPb3uqCms32G39TY+xO4Xu7kt6wkEH[/tex]的二阶导数与二阶微分。
- set1 = {x for x in range(10) if x%2!=0} print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}
- 描述一个正整数n能同时被3,5和7同时整除的正确表达式为 A: n//3==0 and n//5==0 and n//7==0 B: n//3==0 or n//5==0 or n//7==0 C: n%3==0 and n%5==0 and n%7==0 D: n%3==0 or n%5==0 or n%7==0
内容
- 0
阅读下面的java语言代码,输出结果是( )。 int x, y = 1, z=0; if( z < 0 ) x= 3; else if ( y == 0 ) x= 5; else x= 7; System.out.println(x+”,”+ y); A: 7, 0 B: 7, 1 C: 3, 3 D: 以上都不正确
- 1
set1 = {x for x in range(10) if x%2!=0} set1.remove(1) print(set1) 以上代码的运行结果为? A: {1, 3, 5, 7, 9} B: {1, 3, 5, 7} C: {3, 5, 7, 9} D: {3, 5, 7}
- 2
求下列函数的全微分:[tex=4.786x1.429]YY7hPHyCjyuL54nXi8CwSiiN3vuPgdF8GHHMtC7b4M0=[/tex]
- 3
求下列函数的全微分:[tex=7.357x1.571]zU4xeCD33Ro5+mWZ3rGeLXVFF6pw0hNQcujVJ6GoR0FgsoG0QXV6EA52JeklwTod[/tex]
- 4
求下列函数的全微分:[tex=5.929x1.357]luwPmSrj91EFjMjVLqI8jw==[/tex]