ZalikaU775860 ZalikaU775860

25-10-2022
Mathematics

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Which angle has a positive sine and a negative cosine?

Which angle has a positive sine and a negative cosine class=

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KayleannaU412458 KayleannaU412458

25-10-2022

Notice that:

[tex]\begin{gathered} \sin (\frac{3\pi}{4})=\frac{\sqrt[]{2}}{2}>0, \\ \cos (\frac{3\pi}{4})=-\frac{\sqrt[]{2}}{2}<0. \end{gathered}[/tex]

Answer: First option.

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