已知cos(A-兀/6)+sinA=4根号3 /5,则sin(A+7兀/6)的值是____
已知cos(A-兀/6)+sinA=4根号3 /5,则sin(A+7兀/6)的值是____
已知cos(a-派/6)+sina=4/5根号3,则sin(a+7/6派)的值是?
已知cos(a-π/6)+sina=(4*根号3)/5,则sin(a+7π/6)的值是( )
已知cos(a-兀/6)+sina=4/5乘以根号3,则sin(a+7兀/6)的值是?
已知cos(a+兀/6)-sina=4/5根号3,则sin(a-兀/6)=
已知cos(a-π/6)+sina=(4*根号3)/5,则sin(a+7π/6)的值是( )
已知cos(a-π/6)+sina=(4*根号3)/5,则sin(a-7π/6)的值是
已知cos(a-π/6)+sina=4/5根号3,则sin(a+7/6π)的值是?
已知cos(a-pai/6)+sina=4√3/5,则sin(a+7/6pai)的值是?
已知cos(a+pai/6)—sina=4/5根号3,则sin(a—pai/6)的值是?
已知cos(a-π/6)+sina=4根号下3/5,则sin(a+7π/6)=?
已知sina=根号5/5,则sin^4-cos^4a得值?