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Grazes

  • 3 years ago

Evaluate: a.cos270° b.sec 90° c. cot 90°

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  1. ByteMe
    • 3 years ago
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    HINT: 270 degrees is on the negative y-axis Since you're looking for cos(270 degrees), what is the x-coordinate of any point on the y-axis?

  2. Grazes
    • 3 years ago
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    -1

  3. ByteMe
    • 3 years ago
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    no... x-coordinate...

  4. Grazes
    • 3 years ago
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    ohhh I see what I did wrong. I was thinking of 180°

  5. ByteMe
    • 3 years ago
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    yep... i do that too.... sometimes....

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