Question

if the 3rd term of AP is 5 and the 7th term is 9 find its 17th term​

Answer 1

Answer:

a+2d=5

a+6d=9

solved this equation we find that d=1 ,a=3

so the 17th term is 19

Hope its help you

Answer 2

Answer:

19

Step-by-step explanation:

according to the question

a+2d=5 equation 1

a+6d=9 equation 2

subtracting equation 2 from equation 1

we get

-4d=-4

d=1

putting value of d in equation 1

a+2=5

a=3

so the 17 th term will be-> a+16d

=3+16*1

=19

hope it helps you