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HL Maths Help
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10-06-2010 9:49pm#1okaaaay, this makes me sound incredibly stoopid butttt...i was going over some exam questions that I did earlier on this year, & I cant for the life of me figure out how I got this step in my answer!
it was in the 1999 paper 1, question 5 (c)
its a proof my induction question, and in my answer i went straight from
k/6 ( k + 1 )( 2k + 1 ) + 6/6 ( k + 1 )2
to
k+1/6 [ k( 2k + 1 ) + 6( k + 1 )]
& I cant remember how I did this! can anyone give me a hand with it cos I know its the right answer but I cant bloody remember it.. :L
(i couldnt figure out how ta do fractions & squares on this so the little writing is fractions & the big is squares..!:rolleyes:)0
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