Math help (Tan) + brainy
2 answers:
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Answer:
OPTION D: 0
Step-by-step explanation:
Rational numbers are subset of real numbers. These are the numbers that can be represented by a ratio of two integers i.e., of the form , where 'q' is non-zero. The numbers after the decimal forms a pattern. Since, 'q' can be equal to 1, we conclude all integers are rational numbers.
Irrational numbers are the numbers which cannot be represented as ratios. They can only be represented as an approximate value. The numbers after the decimal do not form a pattern.
Here, A is 11.761038... Clearly, the decimal is non-terminating and does not follow a pattern.
In Option B we have √20. √20 = √2 . √10. We know that √2 is an irrational number. So, √20 is also irrational.
In Option C, we have the famous . The value of
is 3.14.... It is an irrational number. The approximate representation of
is
.
In Option D, we have 0. It is an integer. So, it is rational as well.
Answer:
See explanation for answer
Step-by-step explanation:
As far as I know, the best way to solve this it to guess and check. You can make some logical inferences, for instance that you probably won't be dividing or multiplying 5 and 7, as the resulting number would either not be an integer or would be too large. Thinking like this, you can find that . Hope this helps!