举一反三
- 下图所示机构自由度计算,( )是正确的。 A: mg src="http://p.ananas.chaoxing.com/star3/origin/cb07ca0fb12be985c301490389c1e187.jpg" B: F=3×7 –(2×9 + 2 – 2)– 2 = 1 C: F=3×7 –(2×9+ 2– 0)– 0 = 1 D: F=3×7 –(2×8+ 2 – 0)– 2 = 1 E: F=3×5 –(2×6+ 2– 0)– 0 = 1
- 设,且,则为.https://p.ananas.chaoxing.com/star3/origin/bcfd54f0a271a01ee42b18a32bee13ef.pnghttps://p.ananas.chaoxing.com/star3/origin/1e8e187c57b45e3758ee18f375e5245c.pnghttps://p.ananas.chaoxing.com/star3/origin/5388c321d53bb7bde57da208ed478542.png
- 设函数,而,其中,则为https://p.ananas.chaoxing.com/star3/origin/bdd3c3c3d814f974d45d9be460d5a66a.pnghttps://p.ananas.chaoxing.com/star3/origin/9013fc3411ac505abed248ac00a80d36.pnghttps://p.ananas.chaoxing.com/star3/origin/f675b4422c15e05748ebddd882faa308.pnghttps://p.ananas.chaoxing.com/star3/origin/3895cb15e5f52df4fab9f7a8ad29c794.png
- (1) 设,且当时,则函数 .https://p.ananas.chaoxing.com/star3/origin/1df4e5fa778b4917e841b8db8167c4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/1df2c0c8afdc2620e06142ca249383d3.pnghttps://p.ananas.chaoxing.com/star3/origin/2dbeeae137681811236ccf243cfc0188.pnghttps://p.ananas.chaoxing.com/star3/origin/8443294c110ad3b06d5a640d6a3c7ade.png
- 设,,矩阵,则秩 ____。https://p.ananas.chaoxing.com/star3/origin/37ef575fe498777db654afddca62fe2c.pnghttps://p.ananas.chaoxing.com/star3/origin/a615458f7dcae581d0fff21cde15a403.pnghttps://p.ananas.chaoxing.com/star3/origin/290ba9cd94f47cfdfb6c2f491dc6ba09.pnghttps://p.ananas.chaoxing.com/star3/origin/4552fd27a3592e03f9b28737ec534441.png
内容
- 0
设,其中;,其中则有.https://p.ananas.chaoxing.com/star3/origin/d0cfc2621081de50fdccfce79f46071a.pnghttps://p.ananas.chaoxing.com/star3/origin/a859ca16f27e44ddbe42071534d98115.pnghttps://p.ananas.chaoxing.com/star3/origin/97ec69aa5345de920ba437ef28f0672b.pnghttps://p.ananas.chaoxing.com/star3/origin/5a081a011913b73c53f831c6efc17e9b.png
- 1
错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/f3848a1490dc70b67502f23cb8a243a3.jpg
- 2
错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/da50b19fe94e35c6326124e9d69be679.jpg
- 3
设在上可积,且 则 =https://p.ananas.chaoxing.com/star3/origin/6d3cd7acee25635fb4faa3a1cb81beed.pnghttps://p.ananas.chaoxing.com/star3/origin/73b221c75a0f2a2e6213d9db58e45799.pnghttps://p.ananas.chaoxing.com/star3/origin/14c6dd8207950273c04b6ee934da039b.pnghttps://p.ananas.chaoxing.com/star3/origin/5e9eb895c83f02236140b018f1602319.png
- 4
设,则可逆,且 .https://p.ananas.chaoxing.com/star3/origin/5036bef486964bc80a08b5aee9b8dc25.pnghttps://p.ananas.chaoxing.com/star3/origin/4faf2b353a0a163198b7c5f8059246fc.pnghttps://p.ananas.chaoxing.com/star3/origin/bc185c51e709239196da96cedb523f0b.png