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प्रश्न
Sanchay put a 1 cm stick of gum through a (1 × 3–2) machine. How long was the stick when it came out?
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उत्तर
If sanchay put a 1 cm stick of gum through a (1 × 3–2) machine.
Negation (–) sign in power shrews it is a shrinking machine.
So, `1 xx 1/3^2 = 1 xx 1/9 xx 1/9 cm`
Hence, `1/9 cm` stick came out.
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