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Masja
[62]
2 years ago
13
Verify identity :
s%20%7B%7D%5E%7B2%7D%20%282%20%5Calpha%20%29%20%20%3D%201" id="TexFormula1" title="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" alt="2 \sin {}^{2} ( \alpha ) + \cos {}^{2} (2 \alpha ) = 1" align="absmiddle" class="latex-formula">
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ruslelena
[56]
2 years ago
7
0
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what is this? math or physics?
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