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Solution-2008-W-08-Tut-3

# Solution-2008-W-08-Tut-3 - M AT H 2008/09B N AM E(P LE ASE...

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M A T H 2008/09 B T uto r ial3 Week5,Febr uar y5,2008 N AM E (P LE ASE P RI N T ) S T UDE N T N O. 1 ................................................................................. ..................................................................... 2 ................................................................................. ..................................................................... 3 ................................................................................. ..................................................................... 4 ................................................................................. ..................................................................... P lease ci r cle only one answer to eachquestion. Calculato r s a r enot allowed! (Q1) [ 3 Ma r k s ] Th e unit no r mal vecto r t o t h e Ci r c u l a r H e lix r ( t ) = ( s i n ( 2 t ) , c o s ( 2 t ) ,t ) a t t h e p o i n t parenleftbigg 1 , 0 , π 4 parenrightbigg is : ( a ) ( 1 , 1 , 5 ) ( b ) 1 2 7 ( 1 , 1 , 5 ) (c) ( 1 , 0 , 0 ) ( d ) parenleftbigg π 4 , π 4 , 1 parenrightbigg ( e ) parenleftBigg 2 5 , 0 , 1 5
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