x3 - 1x3 = 0 হলে x2 +1x2 এর মান কত? (মান নির্নয় করুন)

Question

Shohan

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2025-01-04 04:42

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x + 1x2 = 7 হলে x3 - 1x3= ?

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x + 1x=7 হলে x3 + 1x3 এর মান কত?

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2x2-3x=2 হলে x3-1x3 এর মান কত?

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x2-3x+1=0 হলে, x3+1x3 এর মান কত?

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x + 1x=3 হলে x3 + 1x3 এর মান কত?

1 Answers 4 Views

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

Shohan

দেওয়া আছে, $x^{3} - \frac{1}{x^{3}} = 0 \Rightarrow (x - \frac{1}{x}) = 0 \Rightarrow {(x - \frac{1}{x})}^{2} = 0$ [বর্গ করে]

$\Rightarrow x^{2} - 2 \times x \times \frac{1}{x} + \frac{1}{x^{2}} = 0 ∴ x^{2} + \frac{1}{x^{2}} = 2$

7 views Answered 2024-12-14 13:31