• 2022-06-01 问题

    (1)u=u_R+u_L+u_C (2)U=U_R+U_L+U_C (3)U=U_R+j(U_L-U_C) (4)U̇=U̇_R+U̇_L+U̇_C (5)U̇=U̇_R+j(U̇_L+U̇_C) 上述公式中正确的是() A: (1)(2)(3)(4) B: (3)(4)(5) C: (1)(4)(5) D: 全都正确

    (1)u=u_R+u_L+u_C (2)U=U_R+U_L+U_C (3)U=U_R+j(U_L-U_C) (4)U̇=U̇_R+U̇_L+U̇_C (5)U̇=U̇_R+j(U̇_L+U̇_C) 上述公式中正确的是() A: (1)(2)(3)(4) B: (3)(4)(5) C: (1)(4)(5) D: 全都正确

  • 2022-05-31 问题

    $u$, $v\in E^3$, $u=(0,-1,1),v=(1,-1,-1)$. What is $||u \times v||^2$:<br/>______

    $u$, $v\in E^3$, $u=(0,-1,1),v=(1,-1,-1)$. What is $||u \times v||^2$:<br/>______

  • 2022-05-31 问题

    $u$, $v\in E^3$, $u=(0,-1,1),v=(1,-1,-1)$. What is $\langle{u,v}\rangle$:<br/>______

    $u$, $v\in E^3$, $u=(0,-1,1),v=(1,-1,-1)$. What is $\langle{u,v}\rangle$:<br/>______

  • 2022-06-19 问题

    B3U1 Reading 1-2

    B3U1 Reading 1-2

  • 2022-06-19 问题

    B3U1 Reading 1-7

    B3U1 Reading 1-7

  • 2022-06-19 问题

    B3U1 Reading 1-4

    B3U1 Reading 1-4

  • 2022-06-19 问题

    B3U1 Reading 1-8

    B3U1 Reading 1-8

  • 2022-06-19 问题

    B3U1 Reading 1-6

    B3U1 Reading 1-6

  • 2022-06-19 问题

    B3U1 Reading 1-5

    B3U1 Reading 1-5

  • 2022-06-19 问题

    B3U1 Reading 1-9

    B3U1 Reading 1-9

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