☆ Selamm ☆
Çözümler:
⇘
A) sin 210° = sin ( 180° + 30° ) = -sin 30° = - 1/2
B) cos 300° = cos ( 360° - 60° ) = cos 60° = 1/2
C) tan 150° = tan ( 180° - 30° ) = -tan 30° = √3/3
D) cot ( 4π/3 ) = cot ( π + π / 3 ) = cot π / 3 = √3/3
E) sin ( 2π/3 ) = sin ( π - π / 3 ) = sin π / 3 = √3/2
F) tan ( 11π /6 ) = tan ( 2π - π/6 ) = -tan π/6 = - √3/3
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