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Question
In the following equation, find which variables x, y, z etc. represent rational or irrational number:
z2 = 0.04
Solution
Given that z2 = 0.04
Now we have to find the value of z
`rArr z^24/100`
`rArr z=sqrt(4/100)`
`rArrz=2/10`
`rArrz=1/5`
So it is rational number
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