333 transform the vector mathbfahatmathbfr sin 2 theta cos phihat14012
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\mathbf{A}=\hat{\mathbf{R}} \sin ^{2} \theta \cos \phi+\hat{\boldsymbol{\theta}} \cos ^{2} \phi-\hat{\boldsymbol{\phi}} \sin \phi 3.33 Transform the vector into cylindrical coordinates and then evaluate it at P= (2,n/2, n/2).