if the common ratio of a geometric progression is -1 what is the sum of its first 20 terms
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if the common ratio of a geometric progression is -1 what is the sum of its first 20 terms
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Answer:
Find the next term of the geometric progression 2, 4, 8, 16, ...
Find the 10th term of the above progression
Find the 20th term of the above progression
Find the sum of the first 20 terms of the above progression
Find the next term of the geometric progression 1000, 500, 250, 125, ...
Find the 20th term of the above progression
Find the sum of the first 20 terms of the above progression
Find the sum to infinity of the above progression
Find the next term of the geometric progression 2, -4, 8, -16, 32, ...
Find the 20th term of the above progression
Find the sum of the first 20 terms of the above progression
The first two terms of a geometric progression are -4 and 2. Write down an expression for the sum to n terms and evaluate the sum to infinity of this progression.