Qualification > Math

sequences

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vids:
hey cn any1 tell m d formulae to find out d nth term
please nidhi help

vids:
i just knw dis1
a+(n-1)d

EGY_Voldmort:
Un = a+(n-1)d

n : order
a : 1st number
d : difference

junky demon:
for eg.if the no.z r 1,4,9,16...
then yu keep findin the diff. until it reaches a single no. btween ol..tht is for the first one:3,second:5,third:7 then the sme thin amongst the three no.z..wen lastly ull reach to 1..therefore  1n and raise to the no. of tyms u found the diff.exclude the tym wen u gt 1...so the ans is 1n^2...hope this helps and there is no easy way except the above formula for help at sequences..:D

vids:
if d difference is not same den??

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