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`int (1)/(x-sqrtx) dx` |
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Answer» `int(1)/(x-sqrtx)dx" माना "sqrtx-1=t` `=int(1)/(sqrtx(sqrtx-1))dx" "rArr (1)/(2sqrtx)dx=dt` `=int(2dt)/(t)" "rArr (1)/(sqrtx)dx=2dt` `=2log|t|+c=2log|sqrtx-1|+c` |
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