1.

If 11 sin2 θ – cos2 θ + 4 sin θ – 4 = 0, 0° < θ < 90°, then what is the value of \(\frac{{\cos 2\;\theta \; + \;\cot 2\theta }}{{\sec 2\theta - \tan 2\;\theta }}?\)

A. \(\frac{{12\; + \;5\sqrt 3 }}{3}\)
B. \(\frac{{10\; + \;5\sqrt 3 }}{3}\)
C. \(\frac{{12\; + \;7\sqrt 3 }}{6}\)
D. \(\frac{{10\; + \;7\sqrt 3 }}{6}\)
Answer» D. \(\frac{{10\; + \;7\sqrt 3 }}{6}\)


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