Question
Without actual division, show that the following rational numbers is a non-terminating repeating decimal:
$\frac{129}{\big(2^2\times5^7\times7^5\big)}$
$\frac{129}{\big(2^2\times5^7\times7^5\big)}$
✓
Answer
$\frac{129}{\big(2^2\times5^7\times7^5\big)}$We know $2, 5$ or $7$ is not a factor of $129$, so it is in its simplest form.
Moreover, $(2^2 \times 5^7 \times 7^5) \neq (2^m \times 5^n)$
Hence, the given rational is non-terminating repeating decimal.
Moreover, $(2^2 \times 5^7 \times 7^5) \neq (2^m \times 5^n)$
Hence, the given rational is non-terminating repeating decimal.
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Very-Short-Answer Questions:
Give an example of two irrationals whose sum is rational.
Give an example of two irrationals whose sum is rational.
Write the modal class for the following frequency distribution:
|
Class
|
10-15
|
15-20
|
20-25
|
25-30
|
30-35
|
35-40
|
|
Frequency
|
30
|
35
|
75
|
40
|
30
|
15
|
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