假设个体域D={1,2,3,4,5,6},Q(x):x>5则[img=64x22]17e446cfd1d9d65.png[/img]的真值为1;(填T或F之一)
举一反三
- 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;
- 设个体域D={1, 2, 3},A(x)为“x大于3”,则谓词公式([img=8x14]17e4385a99bb660.jpg[/img]x)A(x) 的真值为__________.
- 已知(X,Y)的联合分布律为:[img=520x161]1803e1674fcfa1e.jpg[/img]则P(X≤0, |Y|<1)等于 A: 2/9 B: 1/3 C: 5/9 D: 5/6
- 已知(X,Y)的联合分布律为:[img=520x161]1803c332db8081b.jpg[/img]则P(X≤0, |Y|1)等于 A: 2/9 B: 1/3 C: 5/9 D: 5/6
- 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