摘要：∴ ∴点M的轨迹方程为抛物线y=2ax2+1 (2)设以点P(x1.y1)为切点的曲线C的切线方程l1:y-y1= k1(x-x1) 将l1方程代入曲线C:y=ax2并整理得 ax2- k1x-y1+k1x1=0.

网址：http://m.1010jiajiao.com/timu_id_274962[举报]