Jawab:
a.
sin = 4/5
cos = 3/5
tan = 4/3
csc = 5/4
sec = 5/3
cot = 3/4
b.
sin = 5/13
cos = 12/13
tan = 5/12
csc = 13/5
sec = 13/12
cot = 12/5
c.
sin = 3/√13
cos = 2/√13
tan = 3/2
csc = √13/3
sec = √13/2
cot = 2/3
d.
sin = 9/15
cos = 12/15
tan = 9/12
csc = 15/9
sec = 15/12
cot = 12/9
e.
sin = 8/10
cos = 6/10
tan = 8/6
csc = 10/8
sec = 10/6
cot = 6/8
f.
sin = p/r
cos = q/r
tan = p/q
csc = r/p
sec = r/q
cot = q/p
Penjelasan dengan langkah-langkah:
INGAT!
rumus perbandingan trigonometri:
sin = depan/miring
cos = samping/miring
tan = depan/samping
csc = miring/depan
sec = miring/samping
cot = samping/depan
sisi miring adalah sisi yang miring
sisi depan adalah sisi yang ada di depan α°
sisi samping adalah sisi yang ada di samping α°
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Jawab:
a.
sin = 4/5
cos = 3/5
tan = 4/3
csc = 5/4
sec = 5/3
cot = 3/4
b.
sin = 5/13
cos = 12/13
tan = 5/12
csc = 13/5
sec = 13/12
cot = 12/5
c.
sin = 3/√13
cos = 2/√13
tan = 3/2
csc = √13/3
sec = √13/2
cot = 2/3
d.
sin = 9/15
cos = 12/15
tan = 9/12
csc = 15/9
sec = 15/12
cot = 12/9
e.
sin = 8/10
cos = 6/10
tan = 8/6
csc = 10/8
sec = 10/6
cot = 6/8
f.
sin = p/r
cos = q/r
tan = p/q
csc = r/p
sec = r/q
cot = q/p
Penjelasan dengan langkah-langkah:
INGAT!
rumus perbandingan trigonometri:
sin = depan/miring
cos = samping/miring
tan = depan/samping
csc = miring/depan
sec = miring/samping
cot = samping/depan
sisi miring adalah sisi yang miring
sisi depan adalah sisi yang ada di depan α°
sisi samping adalah sisi yang ada di samping α°