Penjelasan dengan langkah-langkah:
cos 30°- sin 240°/cot 45° + sec 60°
= (1/2 √3 - (-1/2 √3))/(1/tan 45° + 1/cos 60°)
= (√3)/(1/1 + 1/1/2)
= (√3)/(1 + 2)
= (√3)/(3)
= 1/3 √3 (B)
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Penjelasan dengan langkah-langkah:
cos 30°- sin 240°/cot 45° + sec 60°
= (1/2 √3 - (-1/2 √3))/(1/tan 45° + 1/cos 60°)
= (√3)/(1/1 + 1/1/2)
= (√3)/(1 + 2)
= (√3)/(3)
= 1/3 √3 (B)