What is cos 45º?See picture for more details

Mathematics

2 answers:

madreJ [45]3 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]3 years ago

4 0

Answer:

Step-by-step explanation:

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