举反列说明此命题是错误的:若[tex=3.214x1.286]Kdwoic4nXX9R0QBZqrpF/g==[/tex], 则[tex=2.571x1.286]6ITAjF7rsnuikjAFpIwBOA==[/tex]或[tex=2.857x1.286]T3LfGwFg8SIeqNS18q+H7w==[/tex].
举一反三
- 举反列说明此命题是错误的:若[tex=3.0x1.286]bpDEUGTfl81oNYObHuSHXQ==[/tex], 则[tex=2.571x1.286]6ITAjF7rsnuikjAFpIwBOA==[/tex].
- 举例说明命题是错误的：若[tex=3.0x1.286]NIEUaTI6Yakd2ZJJFLHtMw==[/tex]，则[tex=2.571x1.286]6ITAjF7rsnuikjAFpIwBOA==[/tex]。
- 举反例说明下列命题是错误的：若 [tex=2.714x1.214]gghu8bpyeWH2RVFvqU3SVA==[/tex] ，则 [tex=2.357x1.0]6tTh6rsLh84+IwljT6w71A==[/tex] 或 [tex=2.286x1.0]oRhzcxo2COa0KP5T3yC4Jw==[/tex] .
- 判断下列命题是否为真：（1）[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex]（2）[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex]（3）[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex]（4）[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex]（5）[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex]（6）[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex]（7）若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex]，则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex]（8）若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex]，则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
- 举反例说明下列命题是错误的.若[tex=3.357x1.0]R9q/1zIcSN2eT74WQYLXS1owfMgCJdyM73Dv43mFmqDIhUOnNb3kwMnwrmSvDBnz[/tex], 则 [tex=2.5x1.0]+HNIZcMaSzNwCe0LO7bsUmyCUUNB20KWNDES4iEPIJE=[/tex]或 [tex=2.5x1.0]sb0lI+O+hg9lDaI90Oub4OQVn7VJeioBAlxxnMs/9Jc=[/tex]