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| 1. |
the sum of the number and its reciprocal is 5/2.find the number. |
| Answer» Let the number be x and y.Now, (1/x)+(1/y)=5/2and x+y=5/2Therefore, x+y= (1/x)+(1/y)\xa0or, x+y=(x+y)/xyor, xy=1So, x = 2 and y = 1/2\xa0 | |