Hi, can you solve this using COMPLEX NUMBERS AND DE MOIVRES THEOREM. The previous solution I got for this was wrong as it used double angle theorem sin 80 14. (a) Use de Moivre's theorem to express as...

Hi, can you solve this using COMPLEX NUMBERS AND DE MOIVRES THEOREM.

The previous solution I got for this was wrong as it used double angle theorem

Extracted text: sin 80 14. (a) Use de Moivre's theorem to express as a polynomial in s, where s = sin 0. sin 0 cos 0 (b) Hence solve the equation x6 – 6x* + 10x2 – 4 = 0, leaving the roots in trigonometric form.