💥 Q 59: Prep 3 Algebra Question Bank T1

If \( b \) is the middle proportional between \( a \) and \( c \),:

Prove that:

\[ \frac{a + b + c}{a^{-1} + b^{-1} + c^{-1}} = b^2 \]

L.H.S. and R.H.S = \( c^2 m^2 \)

MR/Nasef.N