document.write( "Question 1174550: A function is defined by f(0)=0 and f(n)=f(n-1)+2n, for n > 0. Find f(4). \n" ); document.write( "

Algebra.Com's Answer #799971 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "You have an EXPLICIT formula to move from n= 0 to n= 1;\r\n" );
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document.write( "    then from n= 1 to n= 2;\r\n" );
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document.write( "    then from n= 2 to n= 3;\r\n" );
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document.write( "    then from n= 3 to n= 4.\r\n" );
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document.write( "So, do it as instructed, using the formula.\r\n" );
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\n" ); document.write( "\n" ); document.write( "You are FULLY INSTRUCTED.\r
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