Show that (12)n cannot end with digit 0 or 5 for any natural number n.
There is no factor of the form 5n, therefore, 12n can not end with digit 0 or 5 for any natural number n.
CBSE Class 10, 12 syllabus 2024-25 out; board restores two-level mathematics rule
CBSE Class 10 board exam 2024 passing criteria, eligibility for compartment; all you need to know
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