Find the `9^(th)` term and the general term of the progressions: `1/4, -1/2 , 1 , -2`

Find the 10th term and the general term of the progression 1/4, (-1)/2, 1, -2, 4 , ...

Find the 6th term of the progression 2, 6, 18,….

10 th term of the progression -4-1+2+5+... is

Find the number of terms in the progression 4, 2, 1, …,(1)/(128).

Find the 15th term of the arithmetic progression 10, 4, -2, ….

.Find 8 th term of the progression (1)/(3),-(1)/(6),(1)/(12)

Find the 7th term of the series -1/8 +1/4 - 1/2 + 1 … :

(a) Find the 16th term from the end of the progression 3 + 6 + 9 + ... + 99. (b) Find the 10th term from the end of the progression 82 + 79 + 76 + ... + 4. (c) Find the 10th term from the end of the progression 5 + 2 - 1 - 4 - ... - 34.

Find the 12 th term from the end of the following arithmetic progression: 1,4,7,10..88