Question

write the first four terms of the a.p if (a) a=-1.25 d=0.25​

Answer 1

Answer:

use the formula a +3d

now

put the value of a and d

try

Answer 2

Answer:

Given: a = – 1.25, d = – 0.25Let the series be a1, a2, a3, a4 …

a1 = a = – 1.25

a2 = a1 + d = – 1.25 – 0.25 = – 1.50

a3 = a2 + d = – 1.50 – 0.25 = – 1.75

a4 = a3 + d = – 1.75 – 0.25 = – 2.00

the series will be 1.25, – 1.50, – 1.75, – 2.00 ……..