(ii) (8 分) If B = is an orthonormal basis for V, then the coordinate representation of a vector w relative to B is w =(w,น1)u1 + (w,u2)u2 +...+(w,un)un.
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is an orthonormal basis for V,
then the coordinate representation of a vector w relative to B is
w =(w,น1)u1 + (w,u2)u2 +...+(w,un)un.