1.

If( ×+1÷×)=3 fund the value of (x^3+1÷x^3)​

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ANSWER:

x + 1 \div x  = 3 \\  \\ x + 1 = 3x \\  \\ x = 1 \div 2 \\  \\ put \: in \: eqn \: 1 \ \\  ({1 \div 2}^{3}  + 1) \div  {1 \div 2}^{3 \\  \\  \\  \\  \\  \\   there \: fore \: now \\  {x}^{3}  + 1 \div  {x}^{3}  = 9



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