Question

write 1st term and common difference of AP=3,1,-1,-3​

Answer 1

Answer:

1st term is 3 & common difference is -2

Step-by-step explanation:

Ap = 3,1,-1,-3

t1= 3, t2= 1, t3= -1, t4= -3

a=t1

t2 - t1 = 1-3 = -2

t3 - t2 = (-1)-1 = 1+1 = -2

and so on..