Practicing Success
Practicing Success
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If x2 - 44x + 1= 0 and x > 1, then the value of x2 + \(\frac{1}{x^2}\) will be: |
1934 1936 1938 1930 |
1934 |
If x2 - 44x + 1= 0 Divide by x on both sides, x + \(\frac{1}{x}\) = 44 x2 + \(\frac{1}{x^2}\) = 442 - 2 = 1934
⇒ If x + \(\frac{1}{x}\) = a then x2 + \(\frac{1}{x^2}\) = a2 - 2 |
