tentukan nilai dari cos , cod , csc , sin , tan berikut
Matematika
citra538
Pertanyaan
tentukan nilai dari cos , cod , csc , sin , tan berikut
1 Jawaban
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1. Jawaban ahreumlim
a. cos(3π) = -1
b. cot(π/3)
= cos(π/3) / sin(π/3)
= (1/2) / (√3 / 2)
= 1/√3
= √3 / 3
a. sin(3π/2) = -1
b. Tan(-π/4)
= sin(-π/4) / cos(-π/4)
= -sin(π/4) / cos(π/4)
= -(√2 / 2) / (√2 / 2)
= -1
c. Sec(2π/8)
= Sec(π/4)
= 1 / cos(π/4)
= 1 / (√2 / 2)
= 2/√2
= √2