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Mainak Chakraborty Grade: Upto college level
`        The value of limx→tan-13 tan2x - 2tanx - 3 / tan2x - 4tanx + 3 is :`
7 years ago

28 Points
```										Dear Mainak,
Ans:- Let tanx=z
Hence the limit becomes Lt z→3    (z² - 2z -3)/(z²-4z+3)
=Lt z→3   (z-3)(z+1)/(z -3)(z - 1)
=Lt z→3   (z+1)/(z-1)
=2(ans)
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Regards,
SOUMYAJIT IIT_KHARAGPUR
```
7 years ago
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