1.

What is the value of \(\frac{{cosec\;\left( {78^\circ - \theta } \right) - \sec \left( {12^\circ \; + \;\theta } \right) - \tan \left( {67^\circ \; + \;\theta } \right)\; + \;\cot \left( {23^\circ - \theta } \right)}}{{\tan 13^\circ \tan 37^\circ \tan 45^\circ \tan 53^\circ \tan 77^\circ }}?\)

A. -1
B. 2
C. 1
D. 0
Answer» E.


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