• 2022-06-19
    计算下列曲线积分:[tex=14.571x2.643]XXJoiTimFs+kvHhwZAIXW5A0VN6yrWjf4Xi6W3GqF2wH8OuleJ6Y6dUFNOQX7ubEwpFRRYCpgq0XXu3KfbPvw05DJVFA9+flcPm4e+oQQROrZvWNrKj1OkYKwrE2wKlfQ78NmkXMWVmnHqQxoWy2Iw==[/tex] 其中 [tex=0.714x1.0]Hl8mr56J4t0Ek5ZoqbFYYg==[/tex] 是从点 [tex=3.786x1.357]D3EcWH0pI78PtNfPBxDirw==[/tex] 沿 [tex=2.286x1.429]8E7zaDCibVcB0xPC0P/7QQ==[/tex] 到点 [tex=2.857x1.357]YWtkApgNymqGUfnZfMRAzQ==[/tex] 再.沿[tex=0.571x0.786]ZKO2xs0EgSemzoH7MSmYTA==[/tex]轴到点 [tex=3.0x1.357]JmUd3H2DMbx2+WR7wFxdtw==[/tex] 的一段定向弧.
  • 原式 [tex=30.571x2.857]EwfPU4kSqu4kY1FcT8XuRW6iMpNZH1bS5qkAe6R2TKi+qzfHzdQ/u+hgjFpjVijKp3uVCb/cpGafSJUXDWJLodJ/iLtHUKSi7vHaCBW2VKAAZw7yBlEhNnEvwA4uTLkzu8AFlaKIsLStBAEvbgioT8g9JOluQfdc3w4kM/+SX+EC/ywjX4dSrkxYIY51T0x19S8nWCT/LxzFp9zDtr/LQgy+QUxEyuEFIzmMt481mRDKAJjB4BjPmQ/2fxeWGb2+[/tex][tex=27.643x2.857]/d2cw3ZLa2mPpTchJeuxMCB5XhXJVSfHLaDi/MfN+mMAaiuzwbZF4w5hjoIaGqxUvXDYuOhFghfpnxvpX53RTwLYOw1uRSWYV79kC7kAgCmE75BSoPjuoxVEqYzumd54rzZEMZPIkKoy9ORZSBpVxkaT5YpwDQ1YfBiTuW1jPCZHfeDpRYYrZ0OPIUyK05IT2Y0qaUIMsMwcl7m5p/lSByVe2C1lTkdDpvh7qPpxDs97jEAbnDoOo2SO4Y3BIkVLxBS0hDxBBeDkx2MnQP+ntQ==[/tex][tex=21.071x2.429]nwZXW7/8oz0/1tRj1VVw5wpolOXUJ6k0H6e1Iprk1AJuaZFq3wTOOkBRHcOLvpReJJjx7ZKrxQvJEPFLqvCqIWE+nye82KnPaKkJKN/utWnUz720eBVyjUVb68rcyVsbej6iY8aO+JlhGJk6wKjNHhgvNxx3jnsHQw/HJ3S2L8Strp7JmhsUR4kVNzxCKUns[/tex][tex=28.286x2.429]OWn+4xzuq6v6w89o/xBAoMyQ0VvdyerglUpp9SR2BPDb88vnIJdau2JBEH46rDlDJpKEdSGadrTqdbuQdgjTBiDt75AbAotQPP+zsT44Ouri5HZk38SiztKmgE5DRp276mLqbZl8GuXlDiee1QN3P1Z12xf50Xq6UBV49pjQsbK+tcsPOtVzZ3TD1FzTSwHLwyzHWXlX54CBs6/D0roruQ==[/tex]

    举一反三

    内容

    • 0

      假设“☆”是一种新的运算,若3☆2=3×4,6☆3=6×7×8,x☆4=840(x>0),那么x等于: A: 2 B: 3 C: 4 D: 5 E: 6 F: 7 G: 8 H: 9

    • 1

      假设所有变量均为整型, 则表达式[tex=10.571x1.357]LwbIklUNi3bG92VfuhR/2s2h8bPim4KlwMHG5pBJ+3PKMuWS/4OGtcmSMjC2vxzVyrIKC8OVgBRFsqcS0s1A1u2X9g+VlWD58VLIpTfy7/0=[/tex]后[tex=0.571x0.786]FLCxr+5eRIYnIT0kyTRrXg==[/tex]的值为 未知类型:{'options': ['7', '8', '6', '2'], 'type': 102}

    • 2

      【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=

    • 3

      [tex=13.5x2.643]x4bNMVNtm5AI6YvFLEnHZL9npHdzLO7VKwSnzM4NqRWnVA8Tp1CDGXB22xgzYOblcH8jQv+7fTsIQnY9hiR/AlPkNVPHKIF2YCczyBkY+RM=[/tex] 其中 [tex=0.714x1.0]Hl8mr56J4t0Ek5ZoqbFYYg==[/tex] 是抛物线 [tex=2.786x1.429]8E7zaDCibVcB0xPC0P/7QQ==[/tex] 上从点 [tex=3.0x1.357]hCUpMH37yix3aqPLXiFgJQ==[/tex] 到点 [tex=2.286x1.357]OfHxxUhJ2mtIjsaijINmaA==[/tex] 的一段弧.

    • 4

      设 [tex=0.571x0.786]ZKO2xs0EgSemzoH7MSmYTA==[/tex] 轴正方向到方向 [tex=0.714x1.0]Hl8mr56J4t0Ek5ZoqbFYYg==[/tex] 的转角为 [tex=0.714x1.0]OqF+/h/mAb1/2XhJuj27xg==[/tex], 求函数[tex=8.071x1.5]/sT/AbKDQ8781LFnllHoOZo3vVkWfzSCynygzWNL8Es=[/tex]在点 [tex=2.143x1.286]OGI1nc8WH38NKUnYUafisA==[/tex] 处沿方向 [tex=0.714x1.0]Hl8mr56J4t0Ek5ZoqbFYYg==[/tex]  的方向导数,并分别确定转角 [tex=0.714x1.0]OqF+/h/mAb1/2XhJuj27xg==[/tex],使这导数 有(1)最大值;(2)最小值;(3)等于 0 .