Question

If x-1/x=-4 then find:- (i)x²+1/x² (ii)x⁴+1/x⁴​

Answer 1

Step-by-step explanation:

(i) x-1/x = - 4

(x - 1/x)^2 = (-4)^2

$x { }^{2} + 1 \div x - 2 = 16$

x ^2 +1/x = 16+2 =18

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