The first term of an A.P is equal one-half of the common difference,d, find the 8th term of the A.P in the tern of 'd'

Answer 1

a1 = first term of A.P

d = common difference

an = nth term of A.P

an = a1 + ( n - 1 ) d

The first term of an A.P is equal one-half of the common difference means:

a1 = d / 2

In tis case:

a8 = a1 + ( 8 - 1 ) d

a8 = a1 + 7 d

a8 = d / 2 + 7 d

a8 = d / 2 + 14 d / 2

a8 = 15 / 2 d

Answer 2

The solving is correct just that it's .. 15d/2

Answer 3

Its is 15/2

Answer 4

I don't care 😇😇😇😇

Answer 5

15d/2

Answer 6

15d\2

Answer 7

1st term=one whole number one over two `d. 8th=a+(n-1)d =3d/2+(8-1) =3d/2+7d. From this point,you required to find the L.C.M. 3d/2+7d= 3d + 14d .......=17d/2. as the final answer. 2

Answer 8

17d/2