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jailenevazquez755
12.12.2020 •
Mathematics
Which expression represents a 5th root of –i?
a) ![cos(\frac{7\pi}{4})+sin(\frac{7\pi}{4})](/tpl/images/2001/8973/a966b.png)
b) ![cos(\frac{7\pi}{6})+sin(\frac{7\pi}{6})](/tpl/images/2001/8973/69432.png)
c) ![cos(\frac{7\pi}{8})+sin(\frac{7\pi}{8})](/tpl/images/2001/8973/5fa18.png)
d) ![cos(\frac{7\pi}{10})+sin(\frac{7\pi}{10})](/tpl/images/2001/8973/8fc2c.png)
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