1.

If $$ {x=a^{2 over3}-a^{-2 over3}}$$ then the value of $$ {x^{3}+3x}$$.

A. $$ {a^2-{1 over{a^{2}}}}$$
B. $$ {a^2+{1 over{a^{2}}}}$$
C. $$ {a+{1 over a}}$$
D. $$ {a-{1 over a}}$$
Answer» B. $$ {a^2+{1 over{a^{2}}}}$$


Discussion

No Comment Found