Math, asked by ssss56, 10 months ago

If difference between the number and it's recipoical is 24/5. Find the number.​

Answers

Answered by kapilsir19
0

Step-by-step explanation:

x -  \frac{1}{x }  = \frac{24}{5}  \\  =   \frac{ {x}^{2}  - 1}{x}   =  \frac{24}{5}  \\  = 5 {x}^{2}  - 5 = 24x \\  = 5 {x}^{2}  - 24x - 5 = 0 \\  = (5x + 1)(x - 1) = 0 \\  = (5x + 1) = 0 \\  = 5x =  - 1 \\  = x =  \frac{ - 1}{5 }  \\ and \\ = (x - 1) = 0 \\  = x = 1

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Answered by Anonymous
0

Step-by-step explanation:

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number is either 5 or -1/5

let required number is x .

a/c to question,

number - reciprocal of number = 24/5

⇒x - 1/x = 24/5

⇒x² - 1 = 24x/5

⇒5x² - 5 = 24x

⇒5x² - 24x - 5 = 0

⇒5x² - 25x + x - 5 = 0

⇒5x(x - 5) +1(x - 5) = 0

⇒(5x + 1)(x - 5) = 0

⇒x =5, -1/5

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