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= sin (1.360 +210)
= sin 210
= - sin (180+30)
= - sin 30
= - 1/2
tan 120 = - tan (180-120)
= - tan 60
= - √3
sin 570 + tan 120 = - 1/2 -√3
Tan 120 = (-√3)
Maka HasilNya
(-1/2) - (-√3) = (-1+2√3)/2