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anonymous

  • one year ago

The expression cos^-1(3/5) has an infinite number of values. ***Note: This is a relation, not a function*** A. True B. False

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  1. welshfella
    • one year ago
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    This means the angles whose cosine is 3/5 - what do you think?

  2. anonymous
    • one year ago
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    I think that it might be false because there can be only be one angle where the value is 3/5?

  3. welshfella
    • one year ago
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    No there can be more The cosine has a positive value in the first and the fourth quadrants and that's only one revolution 0-360 degrees

  4. welshfella
    • one year ago
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    So there are 2 angles with cos of 3/5 in one rev

  5. anonymous
    • one year ago
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    Oh ok! So we can have an infinite amount of values for this relation right? Becuase if we keep going, there are more values as we go?

  6. welshfella
    • one year ago
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    Right

  7. anonymous
    • one year ago
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    Great! Thank you for your time!

  8. welshfella
    • one year ago
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    Yw

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