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The sum of two numbers is 9 and the sum of their reciprocals is 1by 2. Find the number. |
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Answer» 63 or 36 Let the first no. be x and Therefore second no. =( x-9){suppose x is greater)}A. T. Q. x+1/(x-9)=(x-9)x+(x-9) /(x-9)x2 -9x+x-9x2-8x-9By quarditic formula x=8-10/2 and8+10/2x=-1 (not possible) Therefore x=9 Number =9and9-9=0 |
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