August 2018 1 16 Report
Błagam o pomoc ! matmaaa

zad1
uzupełni wzory dla dowolnego kat ostrego w trójkącie prostokątnym
a) sin( 90* - a) =
b) cos ( 90* -a ) =
C) tg(90*- a) =
d) ctg(90* - a ) =

to * oznacz stopni

zad 2
sprowadź do najprostszej postaci
a)sina*ctga+cosa=
B) (1+sina) (1-sina) + cos² a =
C) 1-cos²α =
D) 1+ctg²α/ 1+tg²α = ( / <-- ułamek )

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