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snow_lady [41]
3 years ago
13

Prove this:cot 75°+cot15°=4​

History
1 answer:
ExtremeBDS [4]3 years ago
7 0

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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