2x-2x=3 হলে x3+1x3 এর মান কত?

Question

Shohan

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2025-01-04 04:42

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x=4+3 হলে x3+1x3 = কত ?

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x4−x2+1=0 হয় তবে, x3+1x3 কত?

1 Answers 4 Views

Shohan · Accepted Answer · 2024-12-14T13:31:11+06:00

Shohan

দেওয়া আছে, $2 x - \frac{2}{x} = 3$

$\Rightarrow 2 (x - \frac{1}{x}) = 3 ∴ (x - \frac{1}{x}) = \frac{3}{2}$

এখন $x^{2} + \frac{1}{x^{2}} = {(x - \frac{1}{x})}^{2} + 2 \times x \times \frac{1}{x}$

$= {(\frac{3}{2})}^{2} + 2 = \frac{9}{4} + 2 = \frac{9 + 8}{4} = \frac{17}{4}$

4 views Answered 2024-12-14 13:31