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println("None") } } When we run the above program using playground, we get the following result: Instance physics is: solid physics Instance equation is: Hertz Instance physics is: Fluid Dynamics Instance formulae is: Giga Hertz Chemistry topics are: 'solid physics', Hertz Maths topics are: 'Fluid Dynamics',

Giga Hertz

Chemistry topics are: 'Thermo physics', Decibels Maths topics are: 'Astro Physics',


Maths topics are: 'Differential Equations',

Cosine Series

Integer value is 12 Pi value is 3.14159 Example for Any Topics 'solid physics', Hertz


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