(x^8) + 2*(x^7) + (x^2) +1 = 0
2+2
3/4
$$\prod_{n=1}^{1000}\left(1-\frac{4}{(2n-1)^2}\right)$$
solve
2(4+3c)=32
$$\prod_{n=1}^{ \infty}\left(1-\frac{4}{(2n-1)^2}\right)$$
If P(x) = x^4 + 2x^3 − x^2 − 2x + 3, Find P(−1).
//bykstncxp
3/-7
