r^4 = 3645/45
r = ±3
a = 5
now you want
ar * ar^3 = a^2 r^4 = 25*81 = ____
A G.P has it's 3rd and 7th terms as 45 and 3645.What is the product of it's 2nd and 4th terms?
1 answer
1 answer
1 answer
2 answers
2 answers
1 answer