document.write( "Question 38174: A geometric sequenee has first term -4 and a constant ratio of 5.\r
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document.write( "a) Write the first six terms of this sequence.
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document.write( "b) Find the sum of the first eight terms of this sequence \n" );
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Algebra.Com's Answer #23874 by venugopalramana(3286) You can put this solution on YOUR website! A geometric sequenee has first term -4 and a constant ratio of 5. \n" ); document.write( "a) Write the first six terms of this sequence. \n" ); document.write( "A=-4...R=5 \n" ); document.write( "T1=A=-4 \n" ); document.write( "T2=AR=-4*5=-20 \n" ); document.write( "T3=A*R^2=-4*5^2=-100 \n" ); document.write( "T4=A*R^3=-500 \n" ); document.write( "T5=-2500 \n" ); document.write( "T6=--12500\r \n" ); document.write( "\n" ); document.write( "_____,______,_____,_______,_______,_______\r \n" ); document.write( "\n" ); document.write( "b) Find the sum of the first eight terms of this sequence \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "S8=A*{R^8-1)}/(R-1)=-4*(5^8-1)/(5-1)=-(5^8-1) \n" ); document.write( " |