document.write( "Question 385636: find the 30th term for these numbers 2,8,16,26 \n" ); document.write( "
Algebra.Com's Answer #272790 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! It can be seen that the numbers are in the form\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "a_1 = 2 \n" ); document.write( "a_2 = 2+6 \n" ); document.write( "a_3 = 2+6+8 \n" ); document.write( "a_4 = 2+6+8+10 etc.\r \n" ); document.write( "\n" ); document.write( "By this logic,\r \n" ); document.write( "\n" ); document.write( "a_30 = 2+6+8+10+...+62 = 2 + (68*29/2) = 988 \n" ); document.write( " |