Precalculus Archive: Questions from May 06, 2023
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Halla el valor exacto de \( \operatorname{sen}\left(255^{\circ}\right) \) \[ \frac{-\sqrt{6}-\sqrt{2}}{2} \] \[ \frac{-\sqrt{6}-\sqrt{4}}{4} \] \[ \frac{-\sqrt{6}+\sqrt{2}}{4} \] \[ \frac{-\sqrt{6}-\s2 answers -
\( \tan \frac{3 \pi}{8} \) \( \begin{array}{l}\tan \frac{3 \pi}{8}=\sqrt{2}-1 \\ \tan \frac{3 \pi}{8}=\frac{\sqrt{2-\sqrt{2}}}{4} \\ \tan \frac{3 \pi}{8}=\sqrt{2+\sqrt{2}} \\ \tan \frac{3 \pi}{8}=\sqr2 answers -
\( \begin{array}{l}\text { Simplifica y halla el valor exacto de } \frac{\tan \left(95^{\circ}\right)-\tan \left(-25^{\circ}\right)}{1+\tan \left(95^{\circ}\right) \tan \left(-25^{\circ}\right)} \\ -\2 answers -
2 answers
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2 answers
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22. Find all critical points for the following functions a) \( z(x, y)=x^{2}-y^{2}-5 x y-12 x+y+9 \) b) \( z(x, y)=\frac{1}{2} x^{2}+\frac{1}{3} y^{3}+5 x-4 y+\frac{5}{6} \)2 answers -
2 answers