DETERMINE THE SUM OF FIRST 99 EVEN NATURAL NUMBERS
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Answered by
5
Sum of first n even nos.= (n)2
sum of first 99 even nos.=(99)2
=9801 is your answer
sum of first 99 even nos.=(99)2
=9801 is your answer
Answered by
18
2,4,6,8,..........….98
An = a+ (n-1)d
2 + 98×2
198
Sn = n/2 ( a+an)
99/2(198+2).
99/2 (200)
99× 100
9900
An = a+ (n-1)d
2 + 98×2
198
Sn = n/2 ( a+an)
99/2(198+2).
99/2 (200)
99× 100
9900
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