nilai dari cot 315° adalah ....
pakai penjelasannya
pakai penjelasannya
cot 315°
= cos(315°)/sin(315°)
= cos(315°)/cos(90°-315°)
= cos(315°)/cos(-225°)
= cos(315°)/cos(225°)
= √2/2 ÷ (-√2/2)
= √2/2 × (-2/√2)
= -2√2/2√2
= -1
[answer.2.content]1982 Brazil: The Glorious Failure
1982 Brazil: The Glorious Failure
cot 315°
= cos(315°)/sin(315°)
= cos(315°)/cos(90°-315°)
= cos(315°)/cos(-225°)
= cos(315°)/cos(225°)
= √2/2 ÷ (-√2/2)
= √2/2 × (-2/√2)
= -2√2/2√2
= -1
[answer.2.content]