Cos 300°+sin-210°+tan 225°=…
Matematika
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Pertanyaan
Cos 300°+sin-210°+tan 225°=…
1 Jawaban
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1. Jawaban Jawer17
cos300° + sin(-210°) + tan 225°
= cos(360-60) - sin(180+30) + tan(180+45)
= cos60 + sin30 + tan45
= 1/2 + 1/2 + 1
= 2