10 Replies
@Apu
Note for OP
+solved @user1 @user2...
to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Im pretty sure we need to use some concepts of binomial, But cant figure out how to
This looks so skibdi

really sori my bad handwriting 🙂↕️

last me i skipped one step kuch ni bas wo 4^r-3^r wae sum ko 2 me break krdia
acha que tha
basically wo sum ko manipulate krke binomial form me lana tha or kuch nai
+solved @Real potato
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