1.

The value of \(\frac{{{{\sec }^2}\theta \left( {2 + {{\tan }^2}\theta + {{\cot }^2}\theta } \right) \div \left( {{{\sin }^2}\theta - {{\tan }^2}\theta } \right)\;}}{{\left( {cose{c^2}\theta + {{\sec }^2}\theta } \right){{\left( {1 + {{\cot }^2}\theta } \right)}^2}}}\) is:

A. 2
B. - 2
C. - 1
D. 1
Answer» D. 1


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