tan405°cot(-570°)/sin690cos(-510°)

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tan405°cot(-570°)/sin690cos(-510°)tan405°cot(-570°)/sin690cos(-510°)tan405°cot(-570°)/sin690cos(-510

tan405°cot(-570°)/sin690cos(-510°)
tan405°cot(-570°)/sin690cos(-510°)

tan405°cot(-570°)/sin690cos(-510°)
原式=tan(360+45)cot(-540-30)/sin(720-30)cos(-360-150)
=tan45cot(-30)/sin(-30)cos(150)
=1*√3/[1/2*(-√3/2)]
=-4