Practice Definition Of Increasing And Decreasing Sequences (18.1.1) - Subsequence Existence
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Definition of Increasing and Decreasing Sequences

Practice - Definition of Increasing and Decreasing Sequences

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a strictly increasing sequence.

💡 Hint: Think of a sequence that rises steadily.

Question 2 Easy

What is a subsequence?

💡 Hint: Look for an example in the sequence.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a strictly increasing sequence?

A sequence where all elements are the same
A sequence where each element is less than the previous one
A sequence where each element is greater than the previous one

💡 Hint: Look at how the terms relate to one another.

Question 2

True or False: Every sequence has at least one increasing subsequence.

True
False

💡 Hint: Consider different orders of numbers.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Given the sequence of numbers from 1 to 20, demonstrate and find at least three different subsequences that are strictly increasing.

💡 Hint: Look for numbers that increase without skipping downward.

Challenge 2 Hard

Construct a sequence of your choice of distinct real numbers and show that it contains both an increasing and decreasing subsequence.

💡 Hint: Select numbers that have both upward and downward movements.

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