" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
cos2/sin2=ctg2
b) cos²α-1 / sin²α-1
sin2/cos2=tg2
c) 1+cos²α = sin²α
cos2=1-sin2
cos2=cos2
L=P
d) 1-cos²α+sin²α
sin2+sin2=2sin2
e) (tgα * cosα)2 + (ctgα * sinα)²
sin2+cos2=1
f) 1-sin²α - ctg²α * sin²α
cos2-cos2=0