E. 1/2 √3
Penjelasan dengan langkah-langkah:
sin A = 1/2 √3
A = 60°
maka sudut B = 90° - 60° = 30°
cos B = cos 30°
= 1/2 √3
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E. 1/2 √3
Penjelasan dengan langkah-langkah:
sin A = 1/2 √3
A = 60°
maka sudut B = 90° - 60° = 30°
cos B = cos 30°
= 1/2 √3