diketahui tan teta=5/4, maka nilai cosec teta adalah...

Tan= depan/samping =5/4

cosec=miring/depan

depan=a
samping=b
miring=c

c=√a^2 + b^2
√5^2 + 4^2
√25+16
√41

cosec =miring /depan
√41/5

Fungsi Trigonometri

tan θ = 5/4 = y/x
r= √(x²+y²)
r = √4²+5² = √41

cosec θ = r/y = (√41)/(5) = ¹/₅ √41