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1.
- A. 2
- B. 2
- C. 2
- D. 2
Answer: Option C
Explanation:
x + (1/x) = 2
বা, x² + 1 = 2x
বা, x² - 2x + 1 = 0
বা, (x - 1)² = 0
বা, x - 1 = 0
∴ x = 1
এখন, x/( x² + x - 1)
= 1/ (1² + 1 - 1)
= 1/1 = 1
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1.
Answer: Option C
Explanation:
x + (1/x) = 2
বা, x² + 1 = 2x
বা, x² - 2x + 1 = 0
বা, (x - 1)² = 0
বা, x - 1 = 0
∴ x = 1
এখন, x/( x² + x - 1)
= 1/ (1² + 1 - 1)
= 1/1 = 1
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