Sin 45 + cot 135 - 2 . sin 30 =
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Sin 45 + cot 135 - 2 . sin 30 =
1 Jawaban
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1. Jawaban bangilham
Sin 45 + cot 135 - 2 . sin 30
= 1/2√2 + (-1) - 2 . 1/2
= 1/2√2 - 1 - 1
= 1/2√2 - 2
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