• 2022-06-04
    已知 [tex=0.5x0.786]hycNLgozeED/VkKdun7zdA==[/tex] 为常向量, [tex=8.143x1.357]bruxd7z84Mx+IpT4bKpETLOFrC3GgebYx8q5eBI3pGA=[/tex], 求 (1) [tex=4.0x1.357]uqh+oOvD2P9iqZ7dD7XO1AzJJxbdr7ISK/dH5I4vhEQ=[/tex]; (2) [tex=5.714x1.357]d7QsC9fjElrjgg6wPWL/cIsF33st0tKYbZw+ECX74ls=[/tex] .
  • 举一反三