Question Number 115499 by mathdave last updated on 26/Sep/20
$${form}\:{a}\:{double}\:{integral}\:{to}\:{represent} \\ $$$${the}\:{area}\:{of}\:{a}\:{plane}\:{fiqure}\:{bounded}\:{by} \\ $$$${the}\:{polar}\:{centre} \\ $$
form-a-double-integral-to-represent-the-area-of-a-plane-fiqure-bounded-by-the-polar-centre-