document.write( "Question 1075584: Provide the first five terms of an arithmetic or geometric sequence that has a first term higher than 10 and a common difference or ratio that is positive but not 1.
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\n" ); document.write( "B. Explain how to use patterns or sequences to determine the last digit of the number 7^N, where N is the four-digit year of your birth.
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Algebra.Com's Answer #690356 by ikleyn(52797) $\"\"$ $\"About$

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document.write( "B.  HINT:  the last digits of the sequence , , , , . . . , . . .  n = 1, 2, 3, 4, 5, 6, 7, 8, . . . \r\n" );
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document.write( "           form a periodic sequence 7, 9, 3, 1, 7, 9, 3, 1, . . . . \r\n" );
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document.write( "So, if you were born in 2001, then the last digit of the number  is 7;\r\n" );
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document.write( "    if you were born in 2002, then the last digit of the number  is 9;\r\n" );
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document.write( "    if you were born in 2003, then the last digit of the number  is 3;\r\n" );
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document.write( "    if you were born in 2004, then the last digit of the number  is 1;\r\n" );
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\n" ); document.write( "\n" ); document.write( "And so on . . . . cyclically . . . \r
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