Question Number 184377 by mathlove last updated on 05/Jan/23
Commented by mathlove last updated on 05/Jan/23
$$ \\ $$Determine the distance between the first two and the third image in the first mirror
Answered by mr W last updated on 06/Jan/23
Commented by mr W last updated on 06/Jan/23
$${distance}\:{from}\:{first}\:{image}\:\left(\mathrm{1}\right)\:{in}\:{M}\mathrm{1} \\ $$$${to}\:{the}\:{second}\:{image}\:\left(\mathrm{2}'\right)\:{is}\: \\ $$$$−\mathrm{1}−\left(−\mathrm{5}\right)=\mathrm{4}. \\ $$$${distance}\:{from}\:{second}\:{image}\:\left(\mathrm{2}'\right) \\ $$$${to}\:{the}\:{third}\:{image}\:\left(\mathrm{3}\right)\:{is}\: \\ $$$$−\mathrm{5}−\left(−\mathrm{7}\right)=\mathrm{2}. \\ $$
Commented by mathlove last updated on 07/Jan/23
$${thanks} \\ $$