SOLUTION: How do i find the value of the expression (if there's any) of Cos-1 0

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Question 653374: How do i find the value of the expression (if there's any) of Cos-1 0
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




means "The angle whose cosine is zero".

Use the unit circle to find all angles for which the cosine is zero. Hint: The cosine of an angle is equal to the -coordinate of the point where the terminal ray of the angle intersects the unit circle.



Note: Unless you specify a more restricted range for your inverse cosine function, any angle is equivalent to

John

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