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in Indefinite Integral by (25.5k points)
`int{1+2tanx(tanx+secx)}^(1//2)dx` is equal to
A. `logsec x (secx -tanx)+C`
B. `log"cosec" (secx+tanx)+C`
C. `logsecx(secx+tanx+C)`
D. `log(secx+tanx)+C`

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