The product of the lengths of the perpendiculars drawn from the points
GIVEN:
IT CAN BE WRITTEN AS:
\[bx\text{ }cos\text{ }\theta \text{ }+\text{ }ay\text{ }sin\text{ }\theta \text{ }\text{ }ab\text{ }=\text{ }0\text{ }\ldots ..\text{ }\left( 1 \right)\]