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Writedown thefirstterm of thesequence ifThe 2kt andthenfindthe50thterm
Explicitformula iftheexplicitformulaisalinearexpressionthenit'sanarithmeticnumber
tefgygf.gggpyygiarenfpatternandhasaconstantdifference
next
550
24,50
1
T 24 I youneedtostatethefirstterm
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when
3 canonlybeusedforarithmeticsequences fibonaccisequences
2 4 6 8 10 constant1stdifferenceof 2
arithmetic
any yespattern
Explicitformula Recursiveformula
The 2k Tk The1 2
T1 211
1 4 9 16 25 madeupofsquarenumbers
Ee.geeppgygrn
Explicitformula
Tk k
To find the nth term of a quadratic sequence
ftp.qq Tn T n Df MET s can use this formulaor the methods
learntin F4
filftstentiff Fifttendiff
, FORM 4 numberpatterns
linear sequence
2 4 6 8
2 2 2 constant1st difference
Formula for general terms of linear sequences
TEST n15d thisgivesyou thegeneral formula
explicitformula
eg 21416 Eg Tofindthe 12th no in the pattern
2
2414
12
TEEN
quadraticsequence
need 4numbersforit to bequadratic
1 4 q 16
3 5 7 1st diff is notconstant
2 2 constant2nddiff
NOTE if the pattern
Formula for quadratic general terms is decreasing
no
eg 35 21 11 5
Tñᵗañ preterm the 1st differences
willbe negative
simultaneousequations othermethod
usecalculator
19 i Tn m
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Writedown thefirstterm of thesequence ifThe 2kt andthenfindthe50thterm
Explicitformula iftheexplicitformulaisalinearexpressionthenit'sanarithmeticnumber
tefgygf.gggpyygiarenfpatternandhasaconstantdifference
next
550
24,50
1
T 24 I youneedtostatethefirstterm
usingrecursiveformula
when
3 canonlybeusedforarithmeticsequences fibonaccisequences
2 4 6 8 10 constant1stdifferenceof 2
arithmetic
any yespattern
Explicitformula Recursiveformula
The 2k Tk The1 2
T1 211
1 4 9 16 25 madeupofsquarenumbers
Ee.geeppgygrn
Explicitformula
Tk k
To find the nth term of a quadratic sequence
ftp.qq Tn T n Df MET s can use this formulaor the methods
learntin F4
filftstentiff Fifttendiff
, FORM 4 numberpatterns
linear sequence
2 4 6 8
2 2 2 constant1st difference
Formula for general terms of linear sequences
TEST n15d thisgivesyou thegeneral formula
explicitformula
eg 21416 Eg Tofindthe 12th no in the pattern
2
2414
12
TEEN
quadraticsequence
need 4numbersforit to bequadratic
1 4 q 16
3 5 7 1st diff is notconstant
2 2 constant2nddiff
NOTE if the pattern
Formula for quadratic general terms is decreasing
no
eg 35 21 11 5
Tñᵗañ preterm the 1st differences
willbe negative
simultaneousequations othermethod
usecalculator
19 i Tn m
E
I
T.tn iinei8ntcosktioiici
