Question

Find AP if an=3-4n.........

Answer 1

hey mate

here is the solution

given:

an=3-4n

so when n=1

then

a1=3-4*1

=3-4

=-1

when n=2

then

a2=-5

when n=3

then

a3=-9

thus,

a.p:-1,-5,-9,-13......