rayvonbarrios rayvonbarrios

12-02-2019
Mathematics

contestada

If the son 30= 1/2 then the cos 60 = ____

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jimrgrant1 jimrgrant1

12-02-2019

Answer:

cos60° = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Using the cofunction identity

• cos(90 - x)° = sinx°, hence

sin30° = cos(90 - 30)° = cos60° = [tex]\frac{1}{2}[/tex]

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