Cos 150 derajat + sin 45 derajat + 1/2 cot (-330) =
Matematika
halidaa
Pertanyaan
Cos 150 derajat + sin 45 derajat + 1/2 cot (-330) =
1 Jawaban
-
1. Jawaban ArZain
cos 150° + sin 45° + 1/2 cot -330°
= -1/2√3 + 1/2√2 + 1/2.-(-√3)
= -1/2√3 + 1/2√2 + 1/2√3
= 1/2√2