valorile functiilor trigonometrice ale catorva unghiuri
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Valorile functiilor trigonometrice ale catorva unghiuri
Cadranul Unghiul sin cos tg ctg
I
0 1 0 +
1 1
1 0 0
II -1 -1
0 -1 0
III1 1
-1 0 0
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IV-1 -1
0 1 0
Functii trigonometrice exprimate cu ajutorul uneia dintre ele
Date
Functii trigonometrice ale unor sume si diferente de unghiuri
Formule pentru transformarea unor produse in sume de functii trigonometrice
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Functii trigonometrice ale jumatatii unui arc