Answer:
Step-by-step explanation:
has the following properties:
º = 1.75 π (π = 180º)
therefore, z₁ = 13 * [ cos(1.75 π) + i sin(1.75 π) ] = 13*[cos(1.75π - 2π) + i sin(1.75π - 2π)] = 13*[cos(-π/4) + i sin(-π/4)] {this is due to periodicity} = 13*(√2/2 - i √2/2) = 
3/4 ÷ 2/1. Multiply by the reciprocal, 3/4 · 1/2 = 3/8.
Answer:
Roll two dices
Step-by-step explanation:
Every dice rolled has two chances of six of winning by showing a 1 or 2, which is the same as one chance of three.
On the opposite, you have four chances of six of loosing by getting a 3,4,5 or 6, which is the same as two chances of three.
Since the chances of loosing are bigger than the ones of winning, every roll makes it more probable of getting a 3,4,5 or 6, so you need to roll as few dices as possible, in this case two is the minimum allowed.
Answer:
259
Step-by-step explanation:
