Page 9 - Math Grade 11 (Advance)

PROEUS DARA

2 0
1 + 3 = 4 = 2
2
I+ 3 + 5 = 9 = 3
2
1+3+5+7=16=4
2
t'Ulntsg 1+3+5+ ... +(2n-l) = n
I
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ruunntu l=HlJlS1GrutH'i n ntStHHH'i S = 2+4+6+ ... +2n
0
"
u u \.1 \.1 u

2=2= lx2

2+4=6=2x3

2 + 4 + 6 = 12 = 3 X 4

2 + 4 + 6 + 8 = 20 = 4 X 5
t'Ul n t S g 2 + 4 + 6 + . . . + 2n = n · ( n + 1 )
1

t~2Jrus1~acs ~n~bq_Jnm
1
1 = l

1 + 7 = 8

1 + 7 + 19 = 27

1 + 7 + 19 + 37 = 64

1+7+19+37+61 = 125

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