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Mathematics
Mathematics
Problem
The number of solutions of the equation
cos
[
x
]
=
e
2
x
−
1
\cos[x] = e^{2x-1}
cos
[
x
]
=
e
2
x
−
1
,
x
∈
[
0
,
2
π
]
x \in [0, 2\pi]
x
∈
[
0
,
2
π
]
, where
[
.
]
[. ]
[
.
]
denotes the greatest integer function is a. 1 b. 2 c. 3 d. 4
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