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Determine the spherical polar coordinates of \widehat{i} P and \widehat{σ} _{h}P if P represents a point whose spherical polar coordinates are (r, θ, \phi ).
\widehat{σ} _{h}P=\widehat{σ} _{h}(r,θ,\phi )=(r,180°-θ,\phi )=(r,π−θ,\phi )