1. Which term of the sequence -1,3,7,11,...... is 95 ? Also find 15th term from the end.
Plz answer me fast!!!!!!!
LusiferOfficial:
25 55
Answers
Answered by
5
Answer:
-1,3,7,11,15,19,23,27,31,35,39,43,47,
51,55,59,63,67,71,75,79,83,87,91,95.
Step-by-step explanation:
15th term =55
Answered by
1
Thnkx for question....
Solution
AP= -1,3,7,11 is 95
n=15
An=a+(n-1)d
95=(-1)+(n-1)4 d =a²-a¹= 3-(-1)=4
95+1=4n-4
96+4=4n
100/4=n
n=>25 Ansss
If n=15
An=a+(n-1)d
a15=(-1)+(15-1)4
a15=-1+56
a(15)=55Ans....
Hope helps un☺️✌️
Similar questions