Odpowiedź:
49 sin²α = 64 cos²α
więc
[tex]\frac{cos^2\alpha }{sin^2\alpha } = \frac{49}{64}[/tex]
ctg²α = [tex]\frac{49}{64}[/tex]
ctg α = [tex]\sqrt{\frac{49}{64} } = \frac{7}{8}[/tex]
==============
Szczegółowe wyjaśnienie:
ctg [tex]\alpha = \frac{cos \alpha }{sin \alpha }[/tex]
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Odpowiedź:
49 sin²α = 64 cos²α
więc
[tex]\frac{cos^2\alpha }{sin^2\alpha } = \frac{49}{64}[/tex]
ctg²α = [tex]\frac{49}{64}[/tex]
ctg α = [tex]\sqrt{\frac{49}{64} } = \frac{7}{8}[/tex]
==============
Szczegółowe wyjaśnienie:
ctg [tex]\alpha = \frac{cos \alpha }{sin \alpha }[/tex]