Using a common base (k) derived from the given equality allows expressing the bases (2, 3, 12) in terms of k and their respective exponents. The properties of exponents can then be applied to solve for the required expression.
If 2x=3y=12z then = $\frac{1}{z} - \frac{1} {y} = $ _____
Asked in GPSC Prelims CSP 1 2019 · Topic: Mechanics (Newton's Laws of Motion and their applications)
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