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`int(secx+tanx)/(secx-tanx)dx` को हल कीजिए ।

Answer» `int(secx+tanx)/(secx-tanx)dx`
`=int((secx+tanx)^(2))/(sec^(2)x-tan^(2)x)dx`
`=int(sec^(2)x+tan^(2)x+2secxtanx)dx`
`=int{sec^(2)x+(sec^(2)x-1)+2secxtanx}dx`
`=2intsec^(2)xdx - int 1dx+2intsecxtanxdx`
`=2tanx-x+2secx+c`


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