Jawab dong mastah..
buktikan identitas berikut
a.Sin A / 1 - cos A = cosec A + cotg A
b. sin^4 a - sin^2 a = cos^4 a - cos^2 a
c. cos a/ 1- sin a - cos a/ 1+ sin a = 2 tg a
tolong djawab
buktikan identitas berikut
a.Sin A / 1 - cos A = cosec A + cotg A
b. sin^4 a - sin^2 a = cos^4 a - cos^2 a
c. cos a/ 1- sin a - cos a/ 1+ sin a = 2 tg a
tolong djawab
izharulhaq78
2 votes
Thanks 1
erizwidodo
Maaf, bagian c itu tan, bukan cot. mohon diedit.