Question 2If 8 times their 17th term of an A.P is equal to 6 times its 9th term, then the 41st termof the A.P is? About the author Iris
Answer: T n =a+(n−1)d Where a is the first term, d is the common difference and T n denotes the n-th term of an AP. Given: 19=a+5d 41=a+16d Solving the above equations gives: d=2,a=9 Therefore, T 40 =9+39⋅2= 87 Reply
Answer:
T
n
=a+(n−1)d
Where a is the first term, d is the common difference and T
n
denotes the n-th term of an AP.
Given:
19=a+5d
41=a+16d
Solving the above equations gives: d=2,a=9
Therefore, T
40
=9+39⋅2=
87