document.write( "Question 1056567: Use any suitable method to find the sum of
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document.write( "63+68+73+...+103+108 \n" );
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Algebra.Com's Answer #671653 by ikleyn(52795)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "Use any suitable method to find the sum of \n" ); document.write( "63+68+73+...+103+108 \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Arithmetic progression with the common difference 5.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The number of terms is \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The sum is \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I used the formula for the sum of an arithmetic progression.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "See the lessons\r \n" ); document.write( "\n" ); document.write( " - Arithmetic progressions\r \n" ); document.write( "\n" ); document.write( " - The proofs of the formulas for arithmetic progressions \r \n" ); document.write( "\n" ); document.write( " - Problems on arithmetic progressions \r \n" ); document.write( "\n" ); document.write( " - Word problems on arithmetic progressions\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |