
What is the common ratio in GP?
Answer
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Hint: Geometric Progression (GP) is a type of sequence where each succeeding term is produced by multiplying each preceding term by a fixed number, which is called a common ratio. This progression is also known as a geometric sequence of numbers as it follows a pattern.
Complete step-by-step solution:
A geometric progression or a geometric sequence is the one, in which each term is varied by another by a common ratio denoted as . General form of a GP is Where is the first term, is the common ratio and is the last term.
Explanation of common ratio of a GP:
Consider a GP where
First term
Second term
Third term
Nth term
Therefore common ratio
If the common ratio is:
a) Negative: The result will alternate between positive and negative.
b) Greater than : There will be an exponential growth towards infinity (positive).
c) Less than : There will be an exponential growth towards infinity (positive and negative).
d) Between and : There will be an exponential decay towards zero.
e) Zero: The result will remain at zero.
Sum of terms of a GP is given by the following formula:
Sum of terms
Where is the first term and is the common ratio of the given GP.
Note: This is a theoretical type of question so we need to have proper knowledge of the concept of Geometric Progression and its properties. We should know the general form of the geometric progression in order to find the solution to the given question.
Complete step-by-step solution:
A geometric progression or a geometric sequence is the one, in which each term is varied by another by a common ratio denoted as
Explanation of common ratio of a GP:
Consider a GP
First term
Second term
Third term
Nth term
Therefore common ratio
If the common ratio is:
a) Negative: The result will alternate between positive and negative.
b) Greater than
c) Less than
d) Between
e) Zero: The result will remain at zero.
Sum of
Sum of
Where
Note: This is a theoretical type of question so we need to have proper knowledge of the concept of Geometric Progression and its properties. We should know the general form of the geometric progression in order to find the solution to the given question.
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