যদি x+1/x=4 হয় তবে x/x2-3x+1 এর মান কত?

যদি x+1/x=4 হয় তবে x/x2-3x+1 এর মান কত?

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  • 1/2

Ans: 1

ব্যাখ্যা: Given that,
x + 1/x = 4
or, (x2 + 1)/x = 4
or, x2 + 1 = 4x
Now,
x/(x2 – 3x + 1)
= x/(x2 + 1 – 3x)
= x/(4x – 3x)
= x/x
= 1

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