x = a + k.360° V x = (180° - a ) + k.360°
2. cos x = cos a
x = ± a + k.360°
3. tan x = tan a
x = a + k.180°
ps:pengerjaan cos sama dengan sin, tapi satu sisi "a" nya bernilai positif dan sisi yg lain bernilai negatif (karena ada ±)
3. tan x = tan a
x = a + k.180°
ps:pengerjaan cos sama dengan sin, tapi satu sisi "a" nya bernilai positif dan sisi yg lain bernilai negatif (karena ada ±)
siip (y)thanks nok!
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