" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y = 7
x = 3
r² = 7² + 3² = 49 + 9 = 58
r = √58
180 < A < 270 berarti A ada di Kuadran III, artinya hanya nilai Tan A saja yang positif.
sin A = -y/r = - 7/√58 = -7/√58 x √58/√58 = -7√58/58 =
cos A = -x/r = -3/√58 = -3/√58 x √58/√58 = -3√58/58 =