1.

Find the value of: cos2Θ {√(1 + sin Θ / 1 – sin Θ) + √(1 – sing Θ / 1 + sin Θ)}

A. cos Θ
B. cos θ /2
C. 2 cosΘ
D. √2 cos Θ
Answer» D. √2 cos Θ


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