<span>z=5-2i
</span><span>|z| = [ (5^2 + (-2)^2) ] ^ 0.5
= ( 25+4) ^ 0.5
= 29^0.5 </span>
Answer:
let the unknown number be = n, and the difference between the number be = X
7,X,n
X = 32/4
ans =8. 8 is the difference between 7 and n
where by n = 16
Yes, because 128 is the greater number
Northerly 835cos41.5=625.4km/h
westerly 835sin41.5=553.3km/h