1.

The value of \(\frac{{\sec \phi \left( {1 - \sin \phi } \right)\left( {\sin \phi + \cos \phi } \right)\left( {sec\phi + \tan \phi } \right)}}{{\sin \phi \left( {1 + \tan \phi } \right) + \cos \phi \left( {1 + \cot \phi } \right)}}\) is equal to:

A. 2 cosϕ
B. 2 sinϕ
C. sinϕcosϕ
D. cosecϕsecϕ
Answer» D. cosecϕsecϕ


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