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RonnyDeKoning

  • 3 years ago

Calculate: cot 15° - tan 15°

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  1. Skaematik
    • 3 years ago
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    |dw:1353260851083:dw|

  2. Skaematik
    • 3 years ago
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    |dw:1353261103061:dw|

  3. RonnyDeKoning
    • 3 years ago
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    I also tried that, but what is your solution then?

  4. Skaematik
    • 3 years ago
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    what is your answer? I'm really tired and its 4:54am here.

  5. RonnyDeKoning
    • 3 years ago
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    The sample is \[(2 \sqrt{3})\div3\]

  6. Skaematik
    • 3 years ago
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    did you type the question correctly? I'm not getting (23√)÷3 as the answer to cot15-tan15.

  7. RonnyDeKoning
    • 3 years ago
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    It's in degree right?

  8. Skaematik
    • 3 years ago
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    @RonnyDeKoning if you solve what i had above you will get 2root3. Which is the answer.

  9. RonnyDeKoning
    • 3 years ago
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    Sorry, i just looked in my book, the correct answear is \[2\sqrt{3}\], sorry, can you show me how you got it?

  10. RonnyDeKoning
    • 3 years ago
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    |dw:1353263259028:dw|

  11. RonnyDeKoning
    • 3 years ago
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    That is for tan, how get cot is it 1/ tan?

  12. Skaematik
    • 3 years ago
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    it is a trigonometric identity

  13. RonnyDeKoning
    • 3 years ago
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    No Geometry, and you have to calculate it.

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