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Question
Choose the correct alternative:
`int(("e"^(2x) + "e"^(-2x))/"e"^x) "d"x` =
Options
`"e"^x - 1/(3"e"^(3x)) + "c"`
`"e"^x + 1/(3"e"^(3x)) + "c"`
`"e"^(-x) - 1/(3"e"^(3x)) + "c"`
`"e"^(-x) + 1/(3"e"^(3x)) + "c"`
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Solution
`"e"^x - 1/(3"e"^(3x)) + "c"`
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