Question

Can 9^n end with digit 2 for nEN.Explain

Answer 1

ACCORDINGLY USING SWITCH SYSTEM THEOREM ON ACCOUNT OF THEORY OF NUMBERS ...

WE HERE CONCLUDE THAT , THE GIVEN EXPRESSION HAS PERIOD OF 2 AND SWITCH NUMBERS BEING 1 AND 0 RESPECTIVELY ...

WHICH DEFINES THAT IT WILL GIVE REPETITION OF PERIODIC VALUES FOR ALL POSITIVE "n"

IT'S PERIODICALLY GENERATED VALUES BEING 9 AND 1 RESPECTIVELY

HENCE , FROM HERE WE CAN CONCLUDE THAT , THE GIVEN EXPRESSION CAN NEVER END WITH 2 ON IT'S UNIT DIGIT PLACE FOR ALL POSITIVE INTEGRAL VALUES OF "n"