1. Find The 25th Term Of The Arithmetic Sequence 21,19,17,15,, 2.Find The 11th Term Of The Arithmetic Sequence -1,0,1,2,...

1. find the 25th term of the Arithmetic sequence 21,19,17,15,

2.find the 11th term of the Arithmetic sequence -1,0,1,2,...

 

Answer:

1.  -27

2.  9

Solution:

1.) 21, 19, 17, 15, 13, 11, 9, 7, 5, 3, 1, -1, -3, -5, -7, -9, -11, -13, -15, -17, -19, -12, -23, -25, -27

2.) -1, 0,1 ,2, 3, 4, 5, 6, 7, 8, 9