1.

If a2 = 4 and a5 = 13 then find a10​

Answer»

Step-by-step explanation:

A2 = a+ d

4 = a+d----------1

A5 = a+ 4D

13 = a+d+3d ------2

from 1, a+d=4

13 = 4+3d

9 = 3d

d = 3

putting value of d in 1

4 = a+ 3

a = 1

A10 = a+9d

= 1+ 9(3)

= 1+ 27

=28



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