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Mathematics — popular questions
Step-by-step Mathematics answers from Answer AI — curated questions, sorted newest first.
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Angle in degrees between the hands of a watch; congruence of triangles
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$x^{x^7}=5^{(25)^{0.2}}$
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14. Si $r=\frac{\sen5\beta+\sen3\beta}{\cos3\beta-\cos5\beta}$
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21. 7 \cdot \log_4 u - 3 \cdot \log_4 v^2
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36. $x^4-2x^2-63\le 0$
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35. $x^4-5x^2+4<0$
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34. $\frac{x^2+4x+4}{2x^2-x-1}>0$
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Solve the system y = x + 8 and 5x + 3y = 16
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Solve the system x = -y + 8 and 4x - 3y = -3
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Solve the system y = x + 5 and y = 2x - 7