2m+m/1=3√2 find8m^3+1/m^3
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2m+(m/1)=3√2
=> 2m + m = 3√2
=> 3m = 3√2
=> m = √2
put the value we get,
8m^3+1/m^3
= 8(√2)^3 + 1/(√2)^3
= 8(2√2) + 1/2√2
= { 8(2√2)^2 + 1 }/2√2
= { 8×8 + 1 } /2√2
= 65/2√2
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