Question

convert r=4 cos theta - sin theta to rectangular form

Answer 1

in equation form....\[r=4\cos \theta - \sin \theta\]

Answer 2

between Polar and Rectangular coordinate system, we have the ff. relationships:
(1) r = sqrt(x^2+y^2)
(2) cos theta = x/r
(3) sin theta = y/r
substitute above relationships to above problem will lead to do the conversion... :-)