Chinese, asked by australia94, 1 year ago

Divide 50 into two parts, such that the sum of their reciprocals is

1/1​

Answers

Answered by Anonymous
2

Explanation:

Let X and Y are two numbers.

according to question x+y =50

• Y= 50-x

● Now,

  =  > \frac{1}{x}  +  \frac{1}{y}  =  \frac{1}{1}  \\  \\  =  >  \frac{1}{x} +  \frac{1}{50 - x}   =  \frac{1}{1}  \\   \\  =  >  \frac{1(50 - x) + 1(x)}{x(50 - x)}  =  \frac{1}{1}  \\  \\  =  >  \frac{50 - x + x}{50x - x ^{2} }  =  \frac{1}{1}  \\  \\  =  >  \frac{50}{50x -  {x}^{2} }  =  \frac{1}{1}  \\  \\  =  > 50x -  {x}^{2}  = 50 \\  \\  =  >  -  {x}^{2}  + 50x - 50 = 0 \\  \\   =  >  {x}^{2}  - 50x + 50 = 0

By solving this you will get..

x=25+5√23 or x=25−5√23

I hope it's helps you...

Please mark it as brainliest....

Answered by TheMist
90

Explanation:

Let X and Y are two numbers.

according to question x+y =50

• Y= 50-x

● Now,

  =  > \frac{1}{x}  +  \frac{1}{y}  =  \frac{1}{1}  \\  \\  =  >  \frac{1}{x} +  \frac{1}{50 - x}   =  \frac{1}{1}  \\   \\  =  >  \frac{1(50 - x) + 1(x)}{x(50 - x)}  =  \frac{1}{1}  \\  \\  =  >  \frac{50 - x + x}{50x - x ^{2} }  =  \frac{1}{1}  \\  \\  =  >  \frac{50}{50x -  {x}^{2} }  =  \frac{1}{1}  \\  \\  =  > 50x -  {x}^{2}  = 50 \\  \\  =  >  -  {x}^{2}  + 50x - 50 = 0 \\  \\   =  >  {x}^{2}  - 50x + 50 = 0

By solving this you will get..

x=25+5√23 or x=25−5√23

I hope it's helps you...

Please mark it as brainliest....

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