Q: If $$x=(\sqrt2+1)^{1\over3} $$, the value of $$(x^3-{1\over {x^3}}) – McqOptions

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1.	Q: If $$x=(\sqrt2+1)^{1\over3} $$, the value of $$(x^3-{1\over {x^3}}) $$ is
A.	0
B.	$$-\sqrt { 2} \ $$
C.	2
D.	$$3\sqrt { 2} \ $$
Answer» D. $$3\sqrt { 2} \ $$

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