Question

answer the question

Answer 1

a=-5
d=5/2
25th term = a + 24d
= -5 + 24×5/2 
= 55
thus the 25th term is 55

Answer 2

Answer:

Step-by-step explanation:

A.P given is -5,-5/2,0,5/2,....

First term (a) = -5

Common difference (d)= -5/2 - (-5/2)

= -5/2+5

= -5+10/2

d= 5/2

Then, 25 th term will be

T25= a+(n-1)d

= a+(25-1)d

= -5+24*5/2

= -5+12*5

=-5+60

= 55