x+(1/x) =2 হলে x/(x2-x+1) এর মান কত?
Solution
Correct Answer: Option A
দেয়া আছে
x + (1/x) = 2
⇒ (x2 + 1)/x = 2
⇒ x2 + 1 = 2x
এখন
x/(x2 - x + 1) = x/(x2 + 1 - x)
= x/(2x - x)
= x/x
= 1
x + (1/x) = 2
⇒ (x2 + 1)/x = 2
⇒ x2 + 1 = 2x
এখন
x/(x2 - x + 1) = x/(x2 + 1 - x)
= x/(2x - x)
= x/x
= 1
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