Penjelasan dengan langkah-langkah:
(sin 135° + cos 225°) /sin 90°
= (sin(180 - 45)° + cos(180 + 45)°) / 1
= sin 45° + cos(-45)°
= 1/2 √2 - 1/2 √2
= 0
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Penjelasan dengan langkah-langkah:
(sin 135° + cos 225°) /sin 90°
= (sin(180 - 45)° + cos(180 + 45)°) / 1
= sin 45° + cos(-45)°
= 1/2 √2 - 1/2 √2
= 0