limx->无穷,(x-1)(x-2)(x-3)(x-4)(x-5)/(3x-2)^a=b,求 a ,b的值

limx->无穷,(x-1)(x-2)(x-3)(x-4)(x-5)/(3x-2)^a=b,求 a ,b的值
limx->无穷,(x-1)(x-2)(x-3)(x-4)(x-5)/(3x-2)^a=b,求 a ,b的值

limx->无穷,(x-1)(x-2)(x-3)(x-4)(x-5)/(3x-2)^a=b,求 a ,b的值
a=5,b=1/3^5

这是无穷比无穷型：故只有a=5;
b=1/3^5=1/243