• 2022-06-01
    设向量[tex=0.714x0.786]x0LwgGwm5PYGhm6jtdZHxw==[/tex]垂直于[tex=4.643x1.357]ZW64+J9P78X4zs8vMnPmuOQDXVqXz+FDMwy/cbB0nj8=[/tex]和[tex=5.286x1.357]X8rtY/bflg34HDdmzhzUZlwlc4L1DMlAmCfkW8sQE/g=[/tex],并且与[tex=4.5x1.357]lfPUbrdP11Eu7MC1Nn7/Zua6ZRcI1HqwOc60UXIbqos=[/tex]的数量积为-10,求向量[tex=0.714x0.786]x0LwgGwm5PYGhm6jtdZHxw==[/tex].