设方阵满足,则或。https://p.ananas.chaoxing.com/star3/origin/30cf26f3ed91b1f13b2d9ca4c0df7b0c.pnghttps://p.ananas.chaoxing.com/star3/origin/023cd430fe912df53922e1e5ec2b2bad.pnghttps://p.ananas.chaoxing.com/star3/origin/89f41b9fbae5688e4f7df68c8f97a907.pnghttps://p.ananas.chaoxing.com/star3/origin/02c3eb4968eb753b7c847c9a09b4ba63.png
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
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/f3848a1490dc70b67502f23cb8a243a3.jpg
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/da50b19fe94e35c6326124e9d69be679.jpg
- (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
- 设是圆,则https://p.ananas.chaoxing.com/star3/origin/d8b5edc9a2457c461a3685877f8606ab.pnghttps://p.ananas.chaoxing.com/star3/origin/5f3c1256fa1597901980dc868dfb57f7.pnghttps://p.ananas.chaoxing.com/star3/origin/1932e2a8e9452d4d6f94177a0ca40384.pnghttps://p.ananas.chaoxing.com/star3/origin/5785decddcc5b175015fc7c46d4d8405.png