The possible solution(s) of the equation $tan x +\frac{1}{cosx}=2cos x$, lying in the interval $0\leq x \leq 2\pi$ are :

The possible solution(s) of the equation $tan x +\frac{1}{cosx}=2cos x$, lying in the interval $0\leq x \leq 2\pi$ are :
1). 3
2). 2
3). 1
4). 4

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