Jawaban:
1. -1/3√3
2. 1/2√2
3. -1/2√2
4. -1/2√3
5. -1/2
Penjelasan dengan langkah-langkah:
1. Tan 150° =
tan (180-a) = 150
tan a = 30
kuadran II --> - tan 30 = -1/2√3
2. Sin 135° =
sin (180-a) = 135
sin a = 45
kuadran II --> sin 45 = 1/2√2
3. cos 135°
cos (180-a) = 135
cos a = 45
kuadran II --> -cos 45 = -1/2√2
4. sin 300°
sin (360-a) = 300
sin a = 60
kuadran IV --> -sin 60 = -1/2√3
5. sin 210°
sin (180+a) = 210
sin a = 30
kuadran III --> - sin 30 = -1/2
MAAF KLO SALAH
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Jawaban:
1. -1/3√3
2. 1/2√2
3. -1/2√2
4. -1/2√3
5. -1/2
Penjelasan dengan langkah-langkah:
1. Tan 150° =
tan (180-a) = 150
tan a = 30
kuadran II --> - tan 30 = -1/2√3
2. Sin 135° =
sin (180-a) = 135
sin a = 45
kuadran II --> sin 45 = 1/2√2
3. cos 135°
cos (180-a) = 135
cos a = 45
kuadran II --> -cos 45 = -1/2√2
4. sin 300°
sin (360-a) = 300
sin a = 60
kuadran IV --> -sin 60 = -1/2√3
5. sin 210°
sin (180+a) = 210
sin a = 30
kuadran III --> - sin 30 = -1/2
MAAF KLO SALAH