題目 Problem VII. Find the area of the region enclosed by the following: (a) (5%)(5\%)(5%) r=2acosθ,a>0。r=2a\cos\theta,\quad a>0。r=2acosθ,a>0。 (b) (10%)(10\%)(10%) r=2(1+cosθ)。r=2(1+\cos\theta)。r=2(1+cosθ)。 解答
