Question

Question 159(i)

Find a single repeater machine that will do the same work as each hook-up.

Answer 1

Using law of exponents, $a^m\times a^n=a^{m+n}$ [$\because$ a is non-zero integer]
Repeator machine can do the work is equal to $2^2\times 2^3\times 2^4=2^9$
So, $(\times 2^9)$ single machine can do the same work.