Qualification > Math
IGCSE MATHS Doubts
Vin:
LOL we are the masters of sequences !!
the_grim_reaper:
--- Quote ---1,3,6,10 write next 4 sequence fast please
urgently fast reply plaese
--- End quote ---
it's .5n^2+.5n
Just use a+(n-1)d+1/2(n-1)(n-2)c
where a is the first term (1), d is the difference between the first and second term (2 here) and c is the second difference
1 3 6 10
2 3 4 (3-1), (6-3), (10-6) NOW
1 1 (3-2), (4-3)
Find the next terms by substitution ( n by 5, 6, 7, 8,9)
Vin:
dude chill she hasnt asked for the nth term =P
princess12:
GOOD LUCK EVERY ONE FOR ALL SUBJECTS :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D[/size][/color]
haris94:
--- Quote from: ~VIN1094~ on May 18, 2010, 10:35:29 pm ---LOL we are the masters of sequences !!
--- End quote ---
oyea 8)
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