={ i. /2 [ 2 n - (i )n] * (2 + i ) /2 } / (4 + 2 )
= {[ 2n - (i ) n ] ( 2 i - 2 )} / 2 n ( 2 + 4)
For objective problems this should be good.
Here you can easily see the answer is coming like that
This has been discussed before.
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From J.R.R. Tolkien's 'The Lord of the Rings':
All that is gold does not glitter
Not all who wander are lost
The old that is strong does not wither,
Deep roots are not reached by frost.
From ashes a fire shall be woken
From shadows a light shall spring
Renewed shall be blade that's broken
The crown less again shall be king.
Moderation Team
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629
/2
/2 [ 1 - ( i.
