Discussion Forum

The value of   $(1+\omega-\omega^{2})^{7}$

Answer:

Explanation:

$(1+\omega-\omega^{2})^{7}=(-\omega^{2}-\omega^{2})^{7}=(-2\omega^{2})^{7}$

 $=-128(\omega^{4})^{3}\omega^{2}=-128\omega^{2}$