sum of a no and it's reciprocal is 21/2. What is the Number?
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let no. be x
ATQ
x + 1/x = 21/2
( x square +1 )/x = 21/2
x square + 1 = 21x/2
2x square +1 = 21x
2x square - 21 x +1 = 0
the quadratic equation is formed and the answer can be found by middle term splitting method ....
ATQ
x + 1/x = 21/2
( x square +1 )/x = 21/2
x square + 1 = 21x/2
2x square +1 = 21x
2x square - 21 x +1 = 0
the quadratic equation is formed and the answer can be found by middle term splitting method ....
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here is ur answer
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