Question

find the 15th and 30th term of -3,-1/2,2​

Answer 1

Answer:

a = -3

d = -1/2 - (-3)

d = -1/2+3

d = 5/2

a15 = -3 + 14(5/2) = 35-3 = 32

a30 = -3 + 29(5/2) = (-6+145)/2 = 139/2

Answer 2

Answer:

solution of the maths is at above