angel9832
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  • 09-02-2021
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prove this:cot 75°+cot15°=4​

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AMDGB
AMDGB AMDGB
  • 09-02-2021

Answer:

Split 75 into two angles where the values of the six trigonometric functions are known. Apply the sum of angles identity. The exact value of cot(30) is √3 .

Explanation:

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