Hello,
1)
z=√3-i
==>ρ²=3+1=4==>ρ=2
arctg(√3/-1)=-60°
z=2∠-60°=2(cos(-60°)+i sin(-60°))
w=-2-2i
==>ρ²=4+4=8==>ρ=2√2
arctg(-2/-2)=45°
w=2√2∠45°=2√2(cos(45°)+i sin(45°))
2)
z²=(√3-i)²=3+1-2√3*i=4-2√3*i
3)w^4=(2√2∠45°)^4=(2√2)^4 ∠180° =-64+0i
You may use radian but i like more degree.
No? What I did was got all quarters,dimes,and nickels. Multiply and add all of them which I got 2.10
Answer:
25.2
Step-by-step explanation:
6/5 is 1.2, so it takes 1.2 minutes to run one lap.
This means 21 x 1.2 = the minutes it takes to run 21 laps around the track.
Therefore it takes 25.2 minutes to run around the track 21 times.
Answer:
2/3 = 0.66666...
Step-by-step explanation: