Question

помогите пожалуйста!!

Answer 1

(p+(1/p)-2)*(1/(1-p))=((p²+1-2p)/p)*(1/(1-p))=((p²-2p+1)/p)*(1/(1-p))=
=((p-1)²/p)*(1/(1-p))=-((p-1)²/p)*(1/(p-1))=-(p-1)/p=(1-p)/p=(1-4)/4=-3/4.