1.

If $$\frac{{\cos \theta }}{{1 - \sin \theta }}$$+ $$\frac{{\cos \theta }}{{1 + {\text{sin }}\theta }}$$= 4, then the value of $$\theta \left( {{0^ \circ } < \theta< {{90}^ \circ }} \right)$$is?

A.
B.
C.
D.
Answer» B. 5°


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