选择题 1.把x→0时的无穷小量α=∫0x2tantdt,β=∫0xcost2dt,γ=
【正确答案】 C
【答案解析】由题意,
α=∫0x2tantdt~∫0x2tdt~x4
β=∫0xcost2dt~∫0x1dt~x,
γ=