Question
Download Solution PDF\(\left(x+\frac{1}{x}\right)=5 \sqrt{2}\) எனில், (x4 + x - 4) இன் மதிப்பு என்ன?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டவை:
\(\left(x+\frac{1}{x}\right)=5 \sqrt{2}\)
பயன்படுத்தபட்ட கருத்து:
\((a + \frac {1}{a})^2 = a^2 + \frac {1}{a^2} + 2\)
கணக்கீடு:
\(\left(x+\frac{1}{x}\right)=5 \sqrt{2}\)
⇒ \(\left(x+\frac{1}{x}\right)^2={(5 \sqrt{2})}^2\)
⇒ \(x^2 + \frac {1}{x^2} + 2 = 50\)
⇒ \({(x^2 + \frac {1}{x^2})^2} = 48^2\)
⇒ \({(x^4 + \frac {1}{x^4}+ 2)} = 2304\)
⇒ \({(x^4 + \frac {1}{x^4})} = 2302\)
∴ \({(x^4 + \frac {1}{x^4})} \) அல்லது (x4 + x - 4)-இன் தேவையான மதிப்பு 2302.
Last updated on Jun 13, 2025
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