Write cubes of all natural numbers between 1 and 20 and verify the following statement. If the statement is true then answer is 1 if not then the answer is 0
Statement: Cubes of all even natural numbers are even.
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Solution
13=1
23=8
33=27
43=64
53=125 so on.
Assume a general even number to be of the form 2n where n is a whole number.
This is true for all even numbers, by definition are divisible by 2.