[tex=13.071x1.286]aJOH68UiPmqAeG4wnkrs87Ac+fvBQFp89KJwB+BFiuh4q1e0YdTo5lveirynbPPw[/tex][img=506x335]17b1f8092c30c4d.png[/img]
举一反三
- 求不定积分[img=115x46]17da65382f8e1b9.png[/img]; ( ) A: x - (5*log(x + 1))/4 - (3*log(x - 3)) B: (5*log(x + 1))/4 - (3*log(x - 3)) C: x - (5*log(x + 1))/4 - (3*log(x - 3))/4 D: (5*log(x + 1))/4 - (3*log(x - 3))/4
- 设随机变量X有概率密度[img=180x49]17e441f3ba0a6ad.png[/img] ,已知X的分布函数F(1)=1/4,则有 A: a=1/2,b=0 B: a=0,b=1/2 C: a=1,b=1/2 D: a=1/4,b=1/4
- 求不定积分[img=112x35]17da6538063a9e4.png[/img]; ( ) A: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/ B: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4))/8 C: (x^4*log(x)^2)/4 - (x^4*(log(x) - 1/4)) D: (x^4*log(x)^2)/4 + (x^4*(log(x) - 1/4))/8
- 设函数[img=156x68]17e440304aa0531.png[/img]在x=2处连续,则( ). A: a=1,b=4 B: a=0,b=4 C: a=1,b=5 D: a=0,b=5
- 假设个体域D={1, 2, 3, 4, 5, 6},P(x):x是偶数,Q(x):x>0 ,R(x):x>6则[img=60x22]17e446cee76fe2e.png[/img]的真值为1;