document.write( "Question 51746: find the sum of the first 19 terms of the arithmetic series in which a1=2 and d=4.
\n" ); document.write( "thanks i hope you can help! \n" ); document.write( "

Algebra.Com's Answer #34623 by venugopalramana(3286) $\"\"$ $\"About$

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find the sum of the first 19 terms of the arithmetic series in which a1=2 and d=4.
\n" ); document.write( "thanks i hope you can help!
\n" ); document.write( "formula is
\n" ); document.write( "sn = (n/2){2a+(n-1)d}
\n" ); document.write( "n=19.............a=2........d=4.so
\n" ); document.write( "s19= (19/2){2*2+(19-1)4}=19*76/2=19*38=722 \n" ); document.write( "

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