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Αν ημω=35 τοˊτε συνω =ημω=\frac{3}{5}\ τότε\ συνω\ \ =ημω=53 τοˊτε συνω =
15\frac{1}{5}51
25\frac{2}{5}52
35\frac{3}{5}53
45\frac{4}{5}54
Ισχύει ημ240°+συν2140° = 1ημ^240\degree+συν^2140\degree\ =\ 1ημ240°+συν2140° = 1
Σωστό
Λάθος
Ισχύει εφω = συνωημω με ημω≠0\frac{συνω}{ημω}\ \ \ με\ ημω\ne0ημωσυνω με ημω=0
ημ ημ180° =ημ180\degree\ =ημ180° =
0
1
-1
12\frac{1}{2}21
Η εφ90°εφ90\degreeεφ90° =
δεν ορίζεται
συν45°=συν45\degree=συν45°=
22\frac{\sqrt[]{2}}{2}22
32\frac{\sqrt[]{3}}{2}23
εφ30°=εφ30\degree=εφ30°=
2\sqrt[]{2}2
3\sqrt[]{3}3
33\frac{\sqrt[]{3}}{3}33
ημ138° < 0ημ138\degree\ <\ 0ημ138° < 0
συν210° < 0συν210\degree\ <\ 0συν210° < 0
ημ150° =ημ150\degree\ =ημ150° =
−12-\frac{1}{2}−21
−32-\frac{\sqrt[]{3}}{2}−23
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