Question

if a=5,r=1/5in G.P,then find a10​

Answer 1

Step-by-step explanation:

a10= a×r^(10-1)

= 5×(1/5)^9

=5^1-9

=5^(-8)

Answer 2

Answer:

Given that,

a=5, r=1/5

a10=ar^9

=5(1/5)^9. 1/aⁿ=a^-n

=5×5^-9. a^m×aⁿ=a^m+n

=5^1-9

=5^-8

=1/5^8

=1/390625

Hope it works......................................™✌️✌️