Hello,

I want to find the exact value of

I know that , and the answer to the question is , but don't know how this works!

Thank you for your answers!

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- January 21st 2013, 10:04 PMianmFinding the Exact Value of an Inverse Trigonometry Function
Hello,

I want to find the exact value of

I know that , and the answer to the question is , but don't know how this works!

Thank you for your answers! - January 21st 2013, 10:08 PMProve ItRe: Finding the Exact Value of an Inverse Trigonometry Function