First, we need to find the angle whose cosine is equal to -√2. Since the cosine function is only defined for values between -1 and 1, this means that -√2 is not a valid input for the arccos function.
Therefore, arccos(-√2) is undefined.
First, we need to find the angle whose cosine is equal to -√2. Since the cosine function is only defined for values between -1 and 1, this means that -√2 is not a valid input for the arccos function.
Therefore, arccos(-√2) is undefined.