Question Number 22388 by gopikrishnan005@gmail.com last updated on 17/Oct/17
$${if}\:{t}_{\mathrm{1}} \:,{t}_{\mathrm{2}} \:{are}\:{the}\:{extremeties}\:{of}\:{any}\:{focal}\:{chord}\:{of}\:{the}\:{parabola}\:{y}^{\mathrm{2}} =\mathrm{4}{ax},{then}\:{t}_{\mathrm{1}} {t}_{\mathrm{2}=} \\ $$
Answered by math solver last updated on 17/Oct/17
$$−\mathrm{1}.\:{do}\:{you}\:{want}\:{proof}\:? \\ $$$${P}.{S}:\:{extremely}\:{useful}\:{property}\:{in}\: \\ $$$${conic}\:{section}.\:{i}\:{will}\:{advise}\:{you}\:{to}\: \\ $$$${remember}\:{it}\:{as}\:{a}\:{property}\:! \\ $$