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Ostrovityanka [42]
4 years ago
5

What is cos 45º?See picture for more details ​

Mathematics
2 answers:
madreJ [45]4 years ago
7 0

Answer:

C. 1/√2

Step-by-step explanation:

cos∅ is adjacent over hypotenuse:

cos45° = 1/√2

cos45° = √2/2

Alternatively, if you learned and memorized your unit circle, cos(π/2) = √2/2

DaniilM [7]4 years ago
4 0

Answer:

C.

Step-by-step explanation:

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