sin(arcsin1/2+arccos1/3)?
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sin(arcsin1/2+arccos1/3)?sin(arcsin1/2+arccos1/3)?sin(arcsin1/2+arccos1/3)?sin(arcsin1/2+arccos1/3)=
sin(arcsin1/2+arccos1/3)?
sin(arcsin1/2+arccos1/3)?
sin(arcsin1/2+arccos1/3)?
sin(arcsin1/2+arccos1/3)
=sin(arcsin1/2)cos(arccos1/3)+cos(arcsin1/2)sin(arccos1/3)
=1/2*1/3+根号(1-(1/2)^2)*根号(1-(1/3)^2)
=1/6+(根号3)/2*2根号(2)/3
=1/6+(根号6)/3
=(1+2根号6)/6
arccos(cos4)求值 sin(2arcsin1/3)求值
sin(arcsin1/2+arccos1/3)?
sin(2arcsin1/3)=
arccos1+arcsin1+arccos(-1)=?
求值:sin(2arcsin1/3+arccos1/5)
sin(2arcsin1/3arccos1/5)
高一数学:tan[arcsin1+arctan(-√3/3)]+cos[arccos(-1/2)+arctan0]
sin(arcsin1)=?
sin(arcsin1)怎么求
sin(arccos(2sin(a)))=
sin(2arcsin1/4)=答案是√15/8
用弧度制表示下列各式的值arcsin1/2= arccos(-^2/2)= arccos1= arctan(-^3)=
sin(arcsin1/4)要过程
arcsin1/2等于多少
求值:sin(arcsin1/5+arccos1/3)helphelphelp
求值sin(arcSIN1/3+arcCos1/3)
求值:sin[arccos(tanarcsin(√2/2))]等于多少?
三角函数求值 sin(arcsin(1/2) + arccos (1/3))=?sin(arcsin(1/2) + arccos (1/3))=?