求值:sin[arccos(tanarcsin(√2/2))]等于多少?
问题描述:
求值:sin[arccos(tanarcsin(√2/2))]等于多少?
答
sin[arccos(tanarcsin(√2/2))]
=sin[arccos(tanπ/4)]
=sin(arccos1)
=sin0
=0