Question

Write the first four terms of A.P when the first term 'a' and the common 'd' are given as follows: i) a = 8; d = -1
ii) a = -1; d = 3
iii) a = x + y; d = -2y
iv) a = 0; d = -2
v) a = 9, d = 4

plzz answer it..

Answer 1

i) 8,7,6,5

iv)0,-2,-4,-6

v)9,13,17,21