Question

for an A.P find s12 if a = -5 and d = -4
plzz solve this question step by step fast i will mark you as brainlist

Answer 1

s= a+(n-1)d
s12= -5+(12-1)×(-4)
= -5 + 11 ×(-4)
= -5-44
= -49

I hope I solved your problem so please mark me as brainly