Question

answer this question​

Answer 1

GIVEN: a =3 and d=3

So, An=a+(n-1)d

PUt the values

n=100

WE GET

A(100)= 3+99*3

=300

Answer 2

AP:--3,6,9,......
a=3 d=6-3=3

T100=a+(n-1)d
T100=3+(100-1)3
T100=3+99 x 3
T100 =3+ 297
T100=300