Answer:
-i.
Step-by-step explanation:
Applying DeMoivre' s theorem:
(sin 30 + i cos 30)^18
= sin(18*30) + i cos(18*30)
= sin 540 + i cos 540
= sin (3*180) + i cos (3*180)
= 0 + -1 * i
= -i.
Answer:
5112 of material
Step-by-step explanation:
<h2>Piece of cake!</h2><h2 />
A rectangular prism has 6 sides, the same as a dice: a top, a bottom, and four sides.
<h3>Two are width by lenght,</h3><h3>Two are width by height, and the other</h3><h3>two are height by width</h3><h3 />
So we can write:
2(W*L)=2(12*33)=792
plus
2(W*H)=2(12*48)=1152
plus
2(H*W)=2(48x33)=3168
792+1152+3168= 5112
<h3>The minimum amount of material needed to cover the pile of logs is 5112
</h3>
Answer:
y=1152
Step-by-step explanation:
It is 6 for number 9 glad I could help