Evaluation:
Published: 05.10.2009.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
  • Summaries, Notes 'Trigonometrija', 1.
Extract

sin2α +cos2α =1
1+ ctg2α =1/sin2α
1+tg2α =1/cos2α
tgα = sinα /cosα
ctgα =cosα /sinα
tgα *ctgα = 1…

Author's comment
Atlants