1.

If \[tan(x+y)=\sqrt{3}\] and \[\mathbf{tan}\left( \mathbf{x}-\mathbf{y} \right)=\frac{1}{\sqrt{3}},\]\[\angle \mathbf{x}+\angle \mathbf{y}

A. \[{{90}^{{}^\circ }}\]
B. \[{{30}^{{}^\circ }}\]
C. \[{{45}^{{}^\circ }}\]
D. \[{{60}^{{}^\circ }}\]
Answer» D. \[{{60}^{{}^\circ }}\]


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