方程[img=193x44]180350c04856d46.png[/img]满足[img=71x26]180350c05065aed.png[/img]的特解为（ ）
A: [img=183x63]180350c05aae107.png[/img]
B: [img=155x63]180350c064b6c5d.png[/img]
C: [img=155x63]180350c06fa5e36.png[/img]
D: [img=183x63]180350c07a38c47.png[/img]
A: [img=183x63]180350c05aae107.png[/img]
B: [img=155x63]180350c064b6c5d.png[/img]
C: [img=155x63]180350c06fa5e36.png[/img]
D: [img=183x63]180350c07a38c47.png[/img]
举一反三
- 下列公式中（ ）不是命题 。 A: ([img=10x19]180361811d22e4e.png[/img]x)P(x) B: ([img=10x19]18036181259b0de.png[/img]x)P(x) C: ([img=10x19]180361811d22e4e.png[/img]x)(P(x)[img=12x16]18036181351b766.png[/img]p(y)) D: ([img=10x19]18036181259b0de.png[/img]x)([img=10x19]18036181259b0de.png[/img]y)(P(x)[img=18x11]180361814f231a2.png[/img]p(y))
- 下列公式中（ ）不是命题 。 A: ([img=10x19]1802fc729227794.png[/img]x)P(x) B: ([img=10x19]1802fc729a47f04.png[/img]x)P(x) C: ([img=10x19]1802fc729227794.png[/img]x)(P(x)[img=12x16]1802fc72ab56bf4.png[/img]p(y)) D: ([img=10x19]1802fc729a47f04.png[/img]x)([img=10x19]1802fc729a47f04.png[/img]y)(P(x)[img=18x11]1802fc72c373eac.png[/img]p(y))
- 下列公式中（ ）不是命题 。 A: ([img=10x19]180323d46bb2977.png[/img]x)P(x) B: ([img=10x19]180323d47572f03.png[/img]x)P(x) C: ([img=10x19]180323d46bb2977.png[/img]x)(P(x)[img=12x16]180323d48718b32.png[/img]p(y)) D: ([img=10x19]180323d47572f03.png[/img]x)([img=10x19]180323d47572f03.png[/img]y)(P(x)[img=18x11]180323d4a05a5c9.png[/img]p(y))
- Which of the following propositions is false,set A = {x,x is an integer and[img=60x23]1803a1c6eebb7a3.png[/img]} ? ( ) A: [img=113x25]1803a1c6f77ce06.png[/img] B: [img=139x25]1803a1c7001fe79.png[/img] C: [img=51x22]1803a1c70863f61.png[/img] D: {x|x is an integer and |x| 4}[img=33x22]1803a1c711a7c63.png[/img]
- Which of the following propositions is false,set A = {x,x is an integer and [img=60x23]1803a1c503ffa04.png[/img]} ? ( ) A: [img=113x25]1803a1c50cc3162.png[/img] B: [img=139x25]1803a1c514e60ea.png[/img] C: [img=51x22]1803a1c51dd52ef.png[/img] D: {x|x is an integer and |x| <4} [img=33x22]1803a1c525cf1bd.png[/img]