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sin(-11派/3)+tan13派/6= 详细过程
人气:347 ℃ 时间:2020-06-21 12:08:23
解答
sin(-11π/3)+tan13π/6
= sin(-4π+π/3) + tan(2π+π/6)
= sin(π/3) + tan(π/6)
= √3/2 + √3/3
= 5√3 /6
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