1 1 cosα 1-cos²α sin²α
-------- - cosα·ctgα = --------- - cosα· --------- = ------------ = -------- = sinα
sinα sinα sinα sinα sinα
cosα
ctgα = --------
sinα
sin²α + cos²α = 1 --> 1 - cos²α = sin²α
1 cosa 1 cos²a 1 - cos²a sin²a
....= ------- - cosa * ---------- = -------- - ------------ = ----------------- = ------------- = sina
sina sina sina sina sina sina
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1 1 cosα 1-cos²α sin²α
-------- - cosα·ctgα = --------- - cosα· --------- = ------------ = -------- = sinα
sinα sinα sinα sinα sinα
cosα
ctgα = --------
sinα
sin²α + cos²α = 1 --> 1 - cos²α = sin²α
1 cosa 1 cos²a 1 - cos²a sin²a
....= ------- - cosa * ---------- = -------- - ------------ = ----------------- = ------------- = sina
sina sina sina sina sina sina