Question

18) For what value of k will k +9,2 k-1 and 2k + 7 are the consecutive terms of an A.P.
OR
For the AP :3/2,1/2, -1/2, 3/2,
write the first term 'a' and the common difference d'.​

Answer 1

Step-by-step explanation:

a=3/2

d=t2-t1

d=1/2-3/2

d=-2/2

d=-1