Question

Which term of the AP 45, 41, 37, 33 ....
is the first negative term

Answer 1

a=45
d=t2-t1=41-45=-4
d= -4

let the negetive term be 12th term 
so acording to thye formula
12 term = a+(n-1 )d
              = 45+(12-1)(-4)
              = 45+11*-4
              = 45-44
              = 1


thus 12 th term  of the AP is 1 thus negitive number is after a term thus 13 th term is 0 and 14 th term is -1




 so the answer is 14 th term