1.

If $cos\frac{2π}{3c} = x$, then the value of x is1). -$\frac{1}{2}$2). $\frac{1}{2}$3).$\frac{√3}{2}$4). - $\frac{√3}{2}$

Answer»

-$\FRAC{1}{2}$ SEEMS CORRECT.



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