Rose curves are characterized by equations of the form r=acos(nθ) or r=asin(nθ), a≠0. If n≠0 is even, the rose has __________ petals; if n≠±1 is odd, the rose has __________ petals.

Rose curves are characterized by equations of the form racosnθ or rasinnθ a0 If n0 is even the rose has petals if n1 is odd the rose has petals class=