# What Do You Know About Mathematical Coincidences?

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Yes, there are coincidences in all fields of mathematics as well. From the Feynman point to Nikola Tesla's belief of singularity, a mathematical coincidence happens when two mathematical expressions or equations without mathematical prove or theoretical explanation show a value or variation that is either equal or almost equal. Let's see what you know about mathematical coincidences by taking this quiz.

• 1.

### How many expressions do we have in the mathematical expression?

• A.

2

• B.

4

• C.

6

• D.

8

A. 2
Explanation
The question is asking for the number of expressions in the mathematical expression. The correct answer is 2 because there are two expressions present in the mathematical expression.

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• 2.

### What does the expression depicts?

• A.

Near equality

• B.

Small variations

• C.

Equality

• D.

Inequality

A. Near equality
Explanation
The expression "near equality" suggests that the depicted situation or comparison is very close to being equal. It implies that there may be some small differences or variations, but overall the items or entities being compared are almost the same in terms of value, quantity, or quality. This answer option indicates that there is a high level of similarity or balance between the elements being depicted.

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• 3.

### What is often used to represent the puzzle?  A/an...

• A.

Integer

• B.

Ratio

• C.

Negative number

• D.

Fractional number

A. Integer
Explanation
An integer is often used to represent the puzzle because it is a whole number that does not include fractions or decimals. It is the most basic form of number representation and is commonly used in puzzles and mathematical calculations.

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• 4.

### How do we know if a value is a mathematical coincidence?

• A.

Different mathematical properties

• B.

Slight variation in mathematical properties

• C.

Similar variation in mathematical properties

• D.

Negative values

C. Similar variation in mathematical properties
Explanation
Similar variation in mathematical properties suggests that a value is a mathematical coincidence. This means that the value exhibits similar patterns or characteristics as other mathematical properties, indicating that it is not a result of deliberate calculation or design. It is likely a random occurrence or a result of chance.

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• 5.

### What is the coincidence that involves π and φ related to?

• A.

Riemann surfaces

• B.

Commutative and distributive laws

• C.

Kepler triangle

• D.

Fibonacci nim

• E.

Galois groups

C. Kepler triangle
Explanation
The coincidence that involves π and φ is related to the Kepler triangle. The Kepler triangle is a right-angled triangle whose side lengths are in the ratio of π : φ : 1. This ratio is a remarkable coincidence as it connects two important mathematical constants, π (pi) and φ (phi), which are both irrational numbers with unique properties. The Kepler triangle highlights the unexpected relationship between these two constants in a geometric context.

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• 6.

### What is the approximate value of the first convergent of π?

• A.

0.04%

• B.

0.03%

• C.

0.02%

• D.

0.01%

A. 0.04%
Explanation
The first convergent of π is approximately 0.04%. This means that if we take the fraction representation of π and approximate it to the nearest hundredth of a percent, it would be 0.04%.

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• 7.

### What is the approximate value of the third convergent of π?

• A.

3.12

• B.

3.14

• C.

3.15

• D.

2.14

B. 3.14
Explanation
The approximate value of the third convergent of π is 3.14.

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• 8.

### What is the coincidence of pi square?

• A.

10

• B.

11

• C.

12

• D.

13

A. 10
Explanation
The coincidence of pi square refers to the occurrence of the number 10 in the decimal expansion of pi squared. In other words, when pi is squared and expressed as a decimal, it coincidentally contains the digit 10.

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• 9.

### What is the coincidence of 2^10?

• A.

10

• B.

100

• C.

1000

• D.

10000

C. 1000
Explanation
The coincidence of 2^10 is 1000 because when we raise 2 to the power of 10, we get the result of 1024. However, the question is asking for the coincidence, which means the number that coincides with the result. In this case, the result is 1024, and the closest option that coincides with it is 1000.

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• 10.

### Which of the following represents the coincidence of 128?

• A.

2^8

• B.

2^10

• C.

5^2

• D.

5^3

D. 5^3
Explanation
The correct answer is 5^3 because when we raise 5 to the power of 3, we get 125. This is the only option that represents the coincidence of 128.

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• Current Version
• Mar 18, 2023
Quiz Edited by
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• May 13, 2018
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