Question

Z podanego wzoru wyznacz wskazana wielkosc:
a). U=2K-Kr ?K
b).U= Pr/P+r ?P

Answer 1

a]

U=2K-Kr

K(2-r)=U

K=U/(2-r)

 

U=Pr/(P+r)

U(P+r)=Pr

UP+Ur=Pr

Pr-UP=Ur

P(r-U)=Ur

P=Ur/(r-U)