1.Which of the following equations gives a circle?a.r=2sinθr=2\sin\thetar=2sinθb.r2cos2θ=1r^2\cos2\theta=1r2cos2θ=1c.r(4cosθ+5sinθ)=3r(4\cos\theta+5\sin\theta)=3r(4cosθ+5sinθ)=3d.5r(1+2cosθ)5r(1+\sqrt{2}\cos\theta)5r(1+2cosθ)Login to continueOnly logged in users canattempt or see the solution.
