你华大的吧?
答案是（1/7,（4根号3）/7）,(-1/7,-(4根号3)/7),submit已过~
Find the unit vectors that are parallel to the tangent line to the curve y = 8 sin x
Find the unit vectors that are parallel to the tangent line to the curve y = 8 sin x
at the point (π/6,4).(Enter your answer as a comma-separated list of vectors.)
at the point (π/6,4).(Enter your answer as a comma-separated list of vectors.)
英语人气：856 ℃时间：2020-04-05 13:42:25
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