Sin Cos Tg ------------------------------------------------------------------------------------------------ Kuadran I (0 < α < 90) + + + cos (90-α) Sin (90-α) cotg (90-α) ------------------------------------------------------------------------------------------------ Kuadran II (90 < α < 180) + - - sin (180-α) - cos (180-α) - tg (180-α) ------------------------------------------------------------------------------------------------ Kuadran III (180 < α < 270) - - + - Sin (α-180) - cos (α-180) tg (α-180) ------------------------------------------------------------------------------------------------ Kuadran IV (270 < α 360) - + - - Sin (360-α) cos (360-α) - tg (360-α) ------------------------------------------------------------------------------------------------ 330° berada di kuadran IV : Sin 330 = - Sin (360-330) = - sin 30 = - 1/2
silahkan re-check processnya sebelum menjadi jawaban akhir semoga membantu
Sin Cos Tg
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Kuadran I (0 < α < 90) + + +
cos (90-α) Sin (90-α) cotg (90-α)
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Kuadran II (90 < α < 180) + - -
sin (180-α) - cos (180-α) - tg (180-α)
------------------------------------------------------------------------------------------------
Kuadran III (180 < α < 270) - - +
- Sin (α-180) - cos (α-180) tg (α-180)
------------------------------------------------------------------------------------------------
Kuadran IV (270 < α 360) - + -
- Sin (360-α) cos (360-α) - tg (360-α)
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330° berada di kuadran IV : Sin 330 = - Sin (360-330)
= - sin 30
= - 1/2
silahkan re-check processnya sebelum menjadi jawaban akhir
semoga membantu