Logical Group Verification: Determining Mathematical Truth Values

Arithmetic Sequences with Pattern Recognition

Mark the group that maintains the veracity.

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Mark the group that is a sequence
00:03 Let's try to find the pattern in each group
00:07 In this group the pattern is not constant, therefore it's not a sequence
00:19 In this group the pattern is constant, add 4, therefore it's a sequence
00:29 In this group the pattern is not constant, therefore it's not a sequence
00:33 Also in this group the pattern is not constant, therefore it's not a sequence
00:38 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Mark the group that maintains the veracity.

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Identify the type of sequence for each option.
  • Step 2: Apply the pattern to see if it holds throughout the group.

Now, let's analyze each choice:

Option 1: 10,4,3,2,1,310, 4, 3, 2, 1, 3
The differences between each consecutive term are: 410=64 - 10 = -6, 34=13 - 4 = -1, 23=12 - 3 = -1, 12=11 - 2 = -1, 31=23 - 1 = 2.
These differences are not consistent, indicating no consistent pattern. Thus, this is not an arithmetic sequence.

Option 2: 62,58,54,50,46,4262, 58, 54, 50, 46, 42
The differences between each consecutive term are: 5862=458 - 62 = -4, 5458=454 - 58 = -4, 5054=450 - 54 = -4, 4650=446 - 50 = -4, 4246=442 - 46 = -4.
These differences are all consistent, indicating an arithmetic sequence with a common difference of 4 -4 .

Option 3: 13,9,10,10,10,113, 9, 10, 10, 10, 1
The differences between each consecutive term are: 913=49 - 13 = -4, 109=110 - 9 = 1, 1010=010 - 10 = 0, 1010=010 - 10 = 0, 110=91 - 10 = -9.
These differences are not consistent, indicating no consistent pattern.

Option 4: 230,200,130,100,30,26230, 200, 130, 100, 30, 26
The differences between each consecutive term are: 200230=30200 - 230 = -30, 130200=70130 - 200 = -70, 100130=30100 - 130 = -30, 30100=7030 - 100 = -70, 2630=426 - 30 = -4.
These differences are not consistent, indicating no consistent pattern.

Therefore, the correct group that maintains the veracity as an arithmetic sequence is with a common difference of -4:

62, 58, 54, 50, 46, 42

3

Final Answer

62, 58, 54, 50, 46, 42

Key Points to Remember

Essential concepts to master this topic
  • Definition: Arithmetic sequences have constant differences between consecutive terms
  • Technique: Calculate differences: 58-62 = -4, 54-58 = -4
  • Check: All differences must be identical for sequence validity ✓

Common Mistakes

Avoid these frequent errors
  • Assuming inconsistent differences form a pattern
    Don't accept sequences like 10,4,3,2,1,3 where differences are -6,-1,-1,-1,+2 = no pattern! This creates false verification. Always ensure every consecutive difference is exactly the same value.

Practice Quiz

Test your knowledge with interactive questions

Look at the following set of numbers and determine if there is any property, if so, what is it?

\( 94,96,98,100,102,104 \)

FAQ

Everything you need to know about this question

What makes a sequence maintain 'veracity' or truth?

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A sequence maintains veracity when it follows a consistent mathematical rule throughout. For arithmetic sequences, this means having the same difference between every pair of consecutive terms.

How do I quickly check if differences are consistent?

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Calculate each difference: term₂ - term₁, term₃ - term₂, etc. If all differences equal the same number (like -4, -4, -4), you have an arithmetic sequence!

Can the common difference be negative?

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Absolutely! A negative common difference means the sequence is decreasing. For example, 62, 58, 54, 50 has a common difference of -4.

What if I get mixed positive and negative differences?

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That indicates no consistent pattern. True arithmetic sequences must have identical differences - all positive, all negative, or all zero.

Why is option 2 the only correct answer?

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Option 2 (62, 58, 54, 50, 46, 42) is the only sequence where every difference equals -4. The other options have varying differences, breaking the arithmetic sequence pattern.

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