What is x12 in the question

#1

h1=x12 + x2 right? if so what is “x12” in the question

#2

Hey @Lakshita, its a clerical mistake, h1 = x1+x2.

HOpe this resolved your doubt.
Plz mark it resolved :blush:

#3

bhayya i think (x1)^2 hoga

#4

Hey @Lakshita, yes its (x1)^2, i get it wrong, also i derived it here, if you need help in that

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Hope this resolved your doubt.
Plz mark it as resolved in my doubts section. :blush: