Question

Determine the ap whose third term is 5 and 7 term is9

Answer 1

Answer:

tn=a+(n-1)d

t3=a+2d=5

t7=a+6d=9

So, 6d-2d=4

4d=4

d=1

So, a=3

A.P is, 3,4,5,6,7,......

Step-by-step explanation:

Answer 2

Answer:

he is corect.

Step-by-step explanation:

tn=a+(n-1)d

t3=a+2d=5

t7=a+6d=9

So, 6d-2d=4

4d=4

d=1

So, a=3

A.P is, 3,4,5,6,7,......