Um, I don’t know how to read Spanish. So, I can’t solve this :(
Answer:
a_n=125×20^(n-1)
Step-by-step explanation:
a_n=x×y^(n-1)
a_3=50000=x×y^2
a_5=20000000=x×y^4
y^2=20000000/50000=400
y=20;x=125
Answer:
-i(6/7)√2
Step-by-step explanation:

Ok then um so ya ok thx for the points though