Question

I am sure you will not do this if A1,A2,A3.........A10 are in gp and A3/A1 is equal to 25 then find A5/A9?​

Answer 1

Step-by-step explanation:

a

1

,a

2

,...,a

10

are in G.P., Let the common ratio be r

a

1

a

3

=25⇒

a

1

a

1

r

2

=25

⇒r

2

=25

a

5

a

9

=

a

1

r

4

a

1

r

8

=r

4

=5

4

Answer 2

Step-by-step explanation:

list the elements of the following sets (i) x:3x-2</=10 and xEN (ii) x:x is a factor of 24