SYMMETRY The curves in Examples 7 and 8 are symmetric about θ = π/2, because sin(π – θ) = sin θ and cos 2(π – θ) = cos 2θ 75 SYMMETRY The fourleaved rose is also symmetric about the pole 76 SYMMETRY These symmetry properties could have been used in3 3 Graph the function y = 2−3cos 2 3 x π 6 Be sure to include all important information on your graphΠ4 5 Π 4 11 Π 4 Θ1 2 5 4 Graph the function y = 2−3sec< θ < π 2 Thendx =9sec2θdθ, √ x2 81 =9secθ andx =0 ⇒ θ =0,x ⇒ θ = π 4,so R9 0
Why Is R 3cos2theta Not Symmetric Over Theta Pi 2 Socratic
