From the de Moivre's we have,
<span>
(cosθ+isinθ)^n=cos(nθ)+isin(nθ)
</span><span>
Therefore,
</span><span>
R((cosθ+isinθ)^5)=cos(5θ)I((cosθ+isinθ)^5)=sin(5θ)
</span><span>
Simplifying,
</span><span>
cos^5(θ)−10(sin^2(θ))(cos^3(θ))+5(sin^4(θ))(cosθ)=cos(5θ) </span><span>
</span>
Answer I think it is c I hope that right I am sorry for late responds
Answer:
s = 7t
Step-by-step explanation:
One friend shoud receive 1/4 nuts
1/4 is equivalent to 2/8
Answer:
π
Step-by-step explanation:
the formula is V = πr2h
pie times radius to the second power times hight
