请问一下f(x 3) f(X 4)include
问题描述:
请问一下f(x 3) f(X 4)include
答
COSA COSB COSC因为x2 = (-5)2 = 25因为10^-6.5*10^4.5-10^-6.5 = -3.1622776601684 * 10 -7AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)