Determine cos 315degrees

asked Sep 9, 2022 152k views

18 votes

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13 votes

It’s same as: cos45

You can always subtract or subtract FROM 360.

360-315=45

Exact value of cos45 is √2/2

LDomagala answered Sep 11, 2022

4.2k points

7 votes

Answer:

Exact Form:

√ 2/ 2

Decimal Form:

0.70710678 …

Explanation:

Find the exact value using trigonometric identities.

Fender answered Sep 14, 2022

3.7k points

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