Sir/maam, why is it so that we cannot consider the case of decrementing by 1 in case of even terms. If i=8,then it is possible that first we go from 5 to 10 then to 9 and finally to 8, we do not know the values or relation between x, y, z, so how can we conclude this?
Doubt in the concept
Hey @vageesha have you seen video of prateek bhaiya for this problem? if no then would suggest you to watch it. if yes then do you have doubt in i+1 recursive case?
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