If $ p^4 = 4354 -\frac{1}{p^4}$ then the value of $p^3 - \frac{1}{p^3}$ can be : |
536 436 416 516 |
536 |
If x4 + \(\frac{1}{x^4}\) = a then x2 + \(\frac{1}{x^2}\) = \(\sqrt {a + 2}\) = b and x - \(\frac{1}{x}\) = \(\sqrt {b - 2}\) If $ p^4 = 4354 -\frac{1}{p^4}$ then the value of $p^3 - \frac{1}{p^3}$ = ? If $ p^4 = 4354 -\frac{1}{p^4}$ $ p^4 + \frac{1}{p^4}= 4354 $ p2 + \(\frac{1}{p^2}\) = \(\sqrt {4356 + 2}\) = 66 and p - \(\frac{1}{p}\) = \(\sqrt {66 - 2}\) = 8 If x - \(\frac{1}{x}\) = n then, $x^3 -\frac{1}{x^3}$ = n3 + 3 × n $p^3 - \frac{1}{p^3}$ = 83 + 3 × 8 $p^3 - \frac{1}{p^3}$ = 512 + 24= 536 |