Answer:
The answer is B 1/4 + 2/6 + 4/10
Step-by-step explanation:
it just makes sense im sorry i cant explain :( i hope it helps either way xx <3
Answer:
b
Step-by-step explanation:
N is equal to 2.5
I divided 20 by 5 to get 4. = 20 ÷ 5 = 4. So, I divide 10 by 4 to get n. = 10 ÷ 4 = 2.5
Or we can do this solution.
20 5
---- = ---- ; do cross multiplication. 20n = 10(5)
10 n
20n = 50 ; to get n, divide both sides by 20. 20n / 20 = 50 / 20 = n = 2.50
Whichever way: 20/10 = 5/2.5
Answer:
B
Step-by-step explanation: edge
Answer:
The solution is 
.
Step-by-step explanation:
Complex power is determined by means of the De Moivre's Theorem, whose expression is:
Where 
is the norm of the complex number. In this case, expression can be written as:
The real component must be equal to zero and complex component must be equal to -1. That is to say:
Possible solutions for each component are, respectively:
Real component
, 
,
Possible solutions: 
, 
, 
Complex component
,
,
Possible solutions: ,
There is one solution whose argument is strictly between 180 degrees (
) and 270 degrees (
).
