Official Solution
Steps 1 & 2: Understand Question and Draw Inferences
Given:
- \(\sqrt{z}/4 = a.bc\)
\(z > 0\)
a, b, c = {0, 1, 2, 3 . . . 8, 9}
To find Is a = 0?
- The answer is YESif \(\sqrt{z}/4\) < 1
That is,if \(\sqrt{z}< 4\)
Since\(\sqrt{z}\) is positive, the sign of inequality will remain the same upon squaring both sides
So, the answer is YES if z < 16
Else, the answer is NO
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