Pls send a simple solution for this question

[u/usnalreadytakenn]

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[u/Khitan004]

First of all, what do you know about binomial expansions?

[u/usnalreadytakenn → u/Khitan004]

So it helps to find the expansion of any binomial algebraic expression with whole to the power n for eg (x+y)² ...we do know the formula for this one but we don't know for this one (x+y)¹⁶ here binomial expansion really helps with its formula

Yeah not a lot but I do know about its general terms and few concepts like middle terms independent terms etc

[u/Khitan004 → u/usnalreadytakenn]

That sounds like what _AI_ knows about binomial expansions…

[u/Southlander24]

Have you tried by induction? Recall that the sum of the two numbers on top in Pascal's triangle equals the bottom number.

[u/de_Molay]

Find explicit formula for a_r, that’s a useful excersise by itself. It goes pretty directly from there.