Question

25, 21, 17, ... which team is the first
negative term?
please give with solution​

Answer 1

Answer:

a = 25

d = 21-25 = -4

an = a + (n-1)*d

Using an <0

0>25+ (n-1) * -4

0>25-4n+4

0>29-4n

4n>29

n>29/4

n = 8

So 7th term is first nagative term

A8 = a +7d

A8= 25 +7*(-4)

25-28= -3

Hope it helps ☺️