CBSE Class 11-science Answered
![If space straight P presuperscript 2 straight n plus 1 end presuperscript subscript straight n minus 1 end subscript colon straight P presuperscript 2 straight n minus 1 end presuperscript subscript straight n equals 3 colon 5 comma space then space find space straight n.](http://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=c22edcb171b3c5c8b901414ba2107ed1.png)
Asked by Topperlearning User | 02 Jun, 2015, 13:59: PM
We have,
![](https://images.topperlearning.com/topper/questions/9543_image012.gif)
Answered by | 02 Jun, 2015, 15:59: PM
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