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Zepler [3.9K]
3 years ago
14

Determine cos 315degrees

Mathematics
2 answers:
sasho [114]3 years ago
8 0
It’s same as: cos45

You can always subtract or subtract FROM 360.

360-315=45

Exact value of cos45 is √2/2
Sergeeva-Olga [200]3 years ago
7 0

Answer:

Exact Form:

√ 2/ 2

Decimal Form:

0.70710678 …

Step-by-step explanation:

Find the exact value using trigonometric identities.

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