Which term of AP will be -2,-7,-12... will be -72
Answers
Answered by
3
an = a + (n - 1)d
-72 = -2 + (n -1) -5. .. ..(d = -7+2 = -5)
(n-1) -5 = -70
n-1 = 14
n = 15
-72 = -2 + (n -1) -5. .. ..(d = -7+2 = -5)
(n-1) -5 = -70
n-1 = 14
n = 15
karanarya3039:
n-1 =14 see carefully
n=14+1=15
Thanks
Similar questions