Pertanyaan :
Jawaban :
Cosec x = 1/sin x
sec x = 1/cos x
sec 10 = sec (90-10)
= cosec 80
sec 20 = ….
…..
so, sec 10 sec 20 sec 40 sec 50 = penyebutnya
sec x = 1/cos x
sec 10 = sec (90-10)
= cosec 80
sec 20 = ….
…..
so, sec 10 sec 20 sec 40 sec 50 = penyebutnya
hasilnya 1