Soru:
25 1+ cos 40° 14. cos 55° cos 35° ifadesi aşağıdakilerden hangisine eşittir? A) cos20° B) 2cos20° C) 4cos20° D) cos40° E) 2cos40°
![25
1+ cos 40°
14.
cos 55° cos 35°
ifadesi aşağıdakilerden hangisine eşittir?
A) cos20°
B) 2cos20°
C) 4cos20°
D) cos40°
E) 2cos40°](https://media.kunduz.com/media/question/seo/raw/20200425154212257602-1336649_q4B857pm5.jpg?h=512)
25 1+ cos 40° 14. cos 55° cos 35° ifadesi aşağıdakilerden hangisine eşittir? A) cos20° B) 2cos20° C) 4cos20° D) cos40° E) 2cos40°