\[\frac{\mathbf{Sin 75{}^\circ }\mathbf{.cos 25{}^\circ }\mathbf{.tan 50{}^\circ }}{\mathbf{Sin 65{}^\circ }\mathbf{.cos15{}^\circ }\mathbf{.cot40{}^\circ }}\]

\[\frac{\mathbf{Sin 75{}^\circ }\mathbf{.cos 25{}^\circ }\mathbf{.tan

1.	\[\frac{\mathbf{Sin 75{}^\circ }\mathbf{.cos 25{}^\circ }\mathbf{.tan 50{}^\circ }}{\mathbf{Sin 65{}^\circ }\mathbf{.cos15{}^\circ }\mathbf{.cot40{}^\circ }}\]
A.	1
B.	\[\mathbf{~}\frac{1}{2}\]
C.	\[\mathbf{~}\frac{1}{3}\]
D.	\[\mathbf{~}\frac{1}{4}\]
E.	None of these
Answer» B. \[\mathbf{~}\frac{1}{2}\]

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\[\frac{\mathbf{Sin 75{}^\circ }\mathbf{.cos 25{}^\circ }\mathbf{.tan 50{}^\circ }}{\mathbf{Sin 65{}^\circ }\mathbf{.cos15{}^\circ }\mathbf{.cot40{}^\circ }}\]

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