Question

What is the common difference of
an ne whose 4 th term is 7 & 9 th
term i 3?​

Answer 1

Answer:

Hope my answer helps you mate :-)

Step-by-step explanation:

According to question

4th term of A. P

a+(7-1)d=7......1

9th term of A. P is

a+(9-1)d=3.......2

a=7-6d. from 1

put it in 2

to get

7-6d+8d=3

2d=-4

d=-2

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