tan8/3π=?要过程
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tan8/3π=?要过程tan8/3π=?要过程tan8/3π=?要过程tan[(8/3)π]=tan(2π+2π/3)=tan(2π/3)=-根号3
tan8/3π=?要过程
tan8/3π=?要过程
tan8/3π=?要过程
tan[(8/3)π]
=tan(2π+2π/3)
=tan(2π/3)
=-根号3
tan8/3π=?要过程
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