Question Number 77046 by ajfour last updated on 02/Jan/20
$${x}={R}^{\mathrm{2}} \sqrt{\mathrm{1}−\frac{{t}^{\mathrm{2}} }{{R}^{\mathrm{2}} }}\: \\ $$
Answered by ajfour last updated on 02/Jan/20
Commented by necxxx last updated on 03/Jan/20
$${Whenever}\:{I}\:{see}\:{some}\:{of}\:{these}\:{hand}\:{drawn} \\ $$$${diagrams}\:{I}\:{remember}\:{some}\:{questions} \\ $$$${in}\:{pbysics}\:{mr}\:{Ajfour}\:{solved}\:{for}\:{me}\:{as} \\ $$$${far}\:{back}\:{as}\:\mathrm{2016}.\:{God}\:{bless}\:{you}\:{sir}.\:{I} \\ $$$${really}\:{appreciate}. \\ $$
Commented by mr W last updated on 03/Jan/20
$${a}\:{real}\:{great}\:{master}\:{in}\:{making} \\ $$$${things}\:{clear}\:{through}\:{perfect} \\ $$$${diagrams}! \\ $$