Question

2Q-If x+1/x=4, find
i)x²+1/x²
ii)x³+1/x³
iii)x⁶+1/x⁶
Please answer this is necessary!!​

Answer 1

Answer:

i) 10

ii) 28

iii) 730

Step-by-step explanation:

(x+1)/x=4

x+1 = 4x

1 = 3x

x = 1/3

i)x²+1/x²

=> (1/9 + 1)/ 1/9

=> (10/9) /(1/9)

=> 10/9 *9

=> 10

ii)x³+1/x³

=> (1/27 + 1)/ 1/27

=> (28/27) /(1/27)

=> 28/27 *27

=> 28

iii)x⁶+1/x⁶

=> (1/729 + 1)/ 1/729

=> (730/729) /(1/729)

=> 730/729 *729

=> 730

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