1) Prove: 3n- 1 is divisible by 2, for all natural numbers n>=1.
1) Prove: 3n– 1 is divisible by 2, for all natural numbers n>=1.
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Technifi Expert’s Answer:
3 raised to any number will be an odd number.
31 = 3, 32 = 9, 33 = 27, 34 = 81,35 = 243
subtracting 1 from any odd number results in an even number which can be divided by 2.
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