x – 1/x = 3 হলে, (x4 + 1)/x2 এর মান –
Solution
Correct Answer: Option A
দেওয়া আছে,
x - 1/x = 3
প্রদত্ত রাশি,
= (x4 + 1)/x2
= x4/x2 + 1/x2
= x2 + 1/x2
= (x - 1/x)2 + 2 . x . 1/x
= (3)2 + 2
= 9 + 2
= 11
x - 1/x = 3
প্রদত্ত রাশি,
= (x4 + 1)/x2
= x4/x2 + 1/x2
= x2 + 1/x2
= (x - 1/x)2 + 2 . x . 1/x
= (3)2 + 2
= 9 + 2
= 11
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