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Prove this:cot 75°+cot15°=4​
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Prove this:cot 75°+cot15°=4​

User Boobalan
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4 votes

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 .

Step-by-step explanation:

User Sbanders
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