" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= (sinα (1 - 2sin²α) / cosα (2 (1 - sin²α) - 1)
= (sinα (1 - 2sin²α) / cosα (1 - 2sin²α)
= sinα / cosα
= tanα
jadi jawaban yang benar adalah A