判断下图第八题反常积分的敛散性,若收敛,计算其值

2025-04-13 00:00:48
推荐回答(1个)
回答1:

原式=2∫[0,1]arccos√xd(√x)
=2∫[0,1]arccosudu
=2u*arccosu|[0,1]-2*∫[0,1]-u/√(1-u²)du
=0-2√(1-u²)|[0,1]
=2