যদি x+ 1/x=−5 হয়, তবে x/(x²+x+1) এর মান কত?
Solution
Correct Answer: Option D
দেওয়া আছে,
x+ 1/x=−5
∴ x2+1=-5x
এখনা,
x/(x²+x+1)
= x/(x²+1+x)
= x/(-5x+x)
= x/-4x
= -(1/4)
x+ 1/x=−5
∴ x2+1=-5x
এখনা,
x/(x²+x+1)
= x/(x²+1+x)
= x/(-5x+x)
= x/-4x
= -(1/4)
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