find the sum of odd integers from 1 to 2001.
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hey mate ur ans is in the given attachment
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Series is :
S=1+3+5+7.............2001
Here
a=1
d=3-1=2
=>a+(n-1)d=2001
1+(n-1)2=2001
n=1001
S=n/2(a+l)
=1001/2(1+2001)
=1001 *1001
=1002001
Hope it helps you
^_^
S=1+3+5+7.............2001
Here
a=1
d=3-1=2
=>a+(n-1)d=2001
1+(n-1)2=2001
n=1001
S=n/2(a+l)
=1001/2(1+2001)
=1001 *1001
=1002001
Hope it helps you
^_^
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