求f(x)=x3-3x k,g(x)=(2kx-k)/(x2 2)1/2×2/3×3/4×4/5×…×9X^2-3XY 2Y^2an=1/n * (-1)^[(3 n)/2]=-(-1)^(n/2 1/2) /n

问题描述:

求f(x)=x3-3x k,g(x)=(2kx-k)/(x2 2)1/2×2/3×3/4×4/5×…×9
X^2-3XY 2Y^2an=1/n * (-1)^[(3 n)/2]=-(-1)^(n/2 1/2) /n

A(5,2)和B(-3,0)对比A= b=对比f(x) f(x 1)=8x 7AB=AC=3COS=1/9