Question

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

Answer 1

Answer:

18

Step-by-step explanation:

x+1/x=3

x+1/x=3

Squaring both the side

(x+1/x)²=3²

=>x²+2*x*1/x+1/x²=9

=>x²+1/x²+2=9

=>x²+1/x²=9-2

=>x²+1/x²=7

x³+1/x³=(x+1/x)(x²+1/x²-x*1/x)

=3*(7-1)

=3*6

=18

Hope it is clear....

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