Triunghiul_teorie.pdf
Triunghiul_teorie.pdf
Triunghiul_teorie.pdf
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B<br />
A C<br />
EX.: sin B= AC<br />
; sin C=AB<br />
BC BC ;<br />
cos B= AB<br />
AC<br />
; cos C=<br />
BC BC ;<br />
tg B= AC<br />
AB<br />
; tg C=<br />
AB AC ;<br />
ctg B= AB AC<br />
; ctg C=<br />
AC AB ;<br />
TABEL CU VALORI MAI DES ÎNTÂLNITE PENTRU<br />
SINUS ŞI COSINUS<br />
x 0� 30� 45� 60� 90�<br />
sin x 0<br />
1 2 3<br />
1<br />
cos x<br />
tg x<br />
ctg x<br />
1<br />
0<br />
-<br />
2<br />
3<br />
2<br />
3<br />
3<br />
3<br />
2<br />
2<br />
2<br />
1<br />
1<br />
2<br />
1<br />
2<br />
3<br />
3<br />
3<br />
0<br />
-<br />
0
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