求值:sin(arcsin1/5+arccos1/3)helphelphelp
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求值:sin(arcsin1/5+arccos1/3)helphelphelp求值:sin(arcsin1/5+arccos1/3)helphelphelp求值:sin(arcsin1/5+arcco
求值:sin(arcsin1/5+arccos1/3)helphelphelp
求值:sin(arcsin1/5+arccos1/3)
helphelphelp
求值:sin(arcsin1/5+arccos1/3)helphelphelp
原式=sin(arcsin1/5)cos(arccos1/3)+
cos(arcsin1/5)sin(arccos1/3)
=(1/5)*(1/3)+()
下次再写,没时间要走啦
求值:sin(arcsin1/5+arccos1/3)helphelphelp
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