Question

which term of GP 5,5√5,25,...... is 15625​

Answer 1

Answer:

r=5✓5/5=✓5

a=5

nth term= ar^(n-1)

15625=5[✓5(n-1)]

15625/5=✓5(n-1)

3125=✓5(n-1)

(✓5)^10=✓5(n-1)

10=n-1

n=11