We appreciate your visit to Please help AP is arithmetic progression. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer:
The least value of n is 17.
Step-by-step explanation:
First term (a) = 46
Second term (a + d) = 43
Third term (a + 2d) = 40
Common difference (d) = second term - first term = 43 - 46 = -3
Tn (nth term) = a + (n - 1)d
a = 46, d = -3
Tn = 46 + (n - 1)-3 = 46 + (-3n + 3) = 46 - 3n + 3 = 49 - 3n
For Tn to be negative, the product of 3 and n must be greater than 49.
Therefore, the least value of n is 17
Thanks for taking the time to read Please help AP is arithmetic progression. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
Rewritten by : Barada
Answer:
17
Step-by-step explanation:
AP 46, 43, 40
a₁= 46, a₂= 43, a₃=40
d= a₃-a₂= a₂-a₁= -3
aₙ= 46+(n-1)*(-3)= 46-3n+3= 49- 3n
nth term is negative, so:
So the least n=17
