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slavikrds [6]
3 years ago
14

What is cos 45º?...........

Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

\frac{1}{\sqrt{2} }

Step-by-step explanation:

Cosine (cos) is adjacent by hypotenuse. \frac{adjacent}{hypotenuse}

In any of the 45° angles, 1 is adjacent and √2 is the hypotenuse.

So arrange them to get \frac{1}{\sqrt{2} }

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