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Question . Show that the number 3" cannot end with the digit 0 for any n e N. ........... plz help me friends |
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Answer» Answer: We KNOW if a number should end with zero, then it's prime FACTOR sould be 2×5 (at least once). Here, 3n=1×3n Therefore, It will not end with zero, because prime FACTORISATION of 3=1×3. Hence PROVED. HOPE IT HELPS |
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