sin 144 . sin 108 . sin 72 . sin 36 = ? Share with your friends Share 0 Pooja Khanna answered this Here is the link for the answer to your query: https://www.meritnation.com/ask-answer/question/experts-and-friends-pls-help-sin36-x-sin72-x-sin108-x-sin1/trigonometric-functions/2417886 1 View Full Answer