Respuesta:
[tex]c) \frac{2\pi }{9} rad[/tex]
Explicación paso a paso:
[tex]\alpha +\frac{5\pi }{18} + 90 = \pi[/tex]
[tex]\alpha +\frac{5\pi }{18} +\frac{\pi }{2} = \pi[/tex]
[tex]\alpha +\frac{7\pi }{9} = \pi[/tex]
[tex]\alpha = \pi -\frac{7\pi }{9}[/tex]
[tex]\boxed{\bf{\alpha =\frac{2\pi }{9}rad }}[/tex] ✔️
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Respuesta:
[tex]c) \frac{2\pi }{9} rad[/tex]
Explicación paso a paso:
[tex]\alpha +\frac{5\pi }{18} + 90 = \pi[/tex]
[tex]\alpha +\frac{5\pi }{18} +\frac{\pi }{2} = \pi[/tex]
[tex]\alpha +\frac{7\pi }{9} = \pi[/tex]
[tex]\alpha = \pi -\frac{7\pi }{9}[/tex]
[tex]\boxed{\bf{\alpha =\frac{2\pi }{9}rad }}[/tex] ✔️