Question

In an AP,
if
d = -4, n=7, an=4
then a is​

Answer 1

Step-by-step explanation:

A=2

Because a should probably be half of an

Answer 2

Answer:

an=a+(n-1)d

1. 4=a+(4-1)-4
2. 4=a+3*-4
3. 4=a+-12
4. a=16