Concept explainers
a.
To find: Type of sequence
a.
Answer to Problem 20WE
The given sequence is an Arithmetic Progression (G.P).
Explanation of Solution
Given information:
From the above sequence the common ratio of the two terms are constant. Therefore, the given sequence is a Geometric progression (G.P).
Calculation:
Let, first term,
Second term,
Third term,
As we know that, the common ratio,
Now,
Hence, the given sequence is a Geometric progression (G.P).
b.
To find: Type of sequence
b.
Answer to Problem 20WE
The given sequence is a Arithmetic Progression (A.P).
Explanation of Solution
Given information:
The base 2 logarithm of 1 is 0
Formula used:
The base 2 logarithm of 4 is 2
The base 2 logarithm of 16 is 4
From the above sequence the common difference between the two terms are constant. Therefore, the given sequence is an Arithmetic Progression (A.P).
Calculation:
Let, first term,
Second term,
Third term,
As we know that, the common difference,
Now,
Hence, the given sequence is an Arithmetic Progression (A.P)
Chapter 11 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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