Let $a = \sqrt{2}$ - Leaving Cert Mathematics - Question b - 2012
Question b
Let $a = \sqrt{2}$.
(a) For each of the numbers in the table below, tick (✓) the correct box to say whether it is rational or irrational.
| Number | rati... show full transcript
Worked Solution & Example Answer:Let $a = \sqrt{2}$ - Leaving Cert Mathematics - Question b - 2012
Step 1
Show the following numbers on the number line below: $a$
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Answer
a=2≈1.414
Step 2
Show the following numbers on the number line below: $-a$
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Answer
−a=−2≈−1.414
Step 3
Show the following numbers on the number line below: $\sqrt{a}$
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Answer
a=2=21/4≈1.189
Step 4
Show the following numbers on the number line below: $a^2$
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Answer
a2=2
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