Use De Moivre's theorem and simplify the following `(cos2theta+isin2theta)^7/(cos4theta+isin4theta)^3`

(cos3theta+isin3theta)^5/(costheta+isintheta)^6

Use De moivers theorem and simplify the following. (Cos 2theta + i Sin 2theta)^7 / (Cos 4theta + i Sin 4theta)^3

Use De Moivers theorem and simplify the following: frac{(cos 2theta + i sin 2theta)^7}{(cos 4theta + i sin 4theta)^3}

Simplify the following. (Cos theta - i Sin theta)^7 / (Cos 2theta - i Sin 2theta)^4

Use De Moivers theorem and simplify the following: frac{cos 5theta + i sin 5theta}{(cos 3theta - i sin 3theta)^2}

Use De moivers theorem and simplify the following. (Cos 5theta + i Sin 5theta) / (Cos 3theta - i Sin 3theta)^2

Solve the following:Show that (costheta+isintheta)^3=cos3theta+isin3theta

Simplify : ((1+ cos theta - isin theta)/(1+cos theta + i sin theta))^5

Use De Moveres Theorom and simplify . (( cos 5 theta + i sin 5 theta ) ^(2))/( ( cos 4 theta -i sin 4 theta ) ^(3))

((cos3theta-isin3theta)^4)/((sin2theta+icos2theta)^5)=