1.

If \[\left( {{p}^{2}}-{{q}^{2}} \right)~~\] \[\mathbf{sin}\theta +\text{ }\mathbf{2pq}\text{ }\mathbf{cos}\text{ }\theta =\text{ }{{\mathbf{p}}^{\mathbf{2}}}-\text{ }{{\mathbf{q}}^{\mathbf{2}}}\], then the value of tan\[\theta \] is ________

A.  \[\frac{p+q}{2pq}\]                                                     
B.  \[\frac{p-q}{2pq}\]
C.  \[\frac{{{p}^{2}}-{{q}^{2}}}{2pq}\]            
D.  \[\frac{{{p}^{2}}+{{q}^{2}}}{2pq}\]
E.  None of these
Answer» D.  \[\frac{{{p}^{2}}+{{q}^{2}}}{2pq}\]


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