Question

if 5th term and 7th term of an AP are -3and 4.Find it's 12th term​

Answer 1

Step-by-step explanation:

answer is 21.5

hope it helps u

Answer 2

Answer:

t11 = 18

Step-by-step explanation:

tn = a+(n-1)d

t5 = a+4d = -3. ; t6 = a+6d =4

d= 2/7. a= -17

t11 = a+10d = -17+10(7/2) = 35-17 = 18