if sino =√3/2 find the value of 2 cot 2 a-1
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Answer:
sin A = √3/2
sin A = sin 60°
A = 60°
Now, cot A = cot 60° = 1/√3
2cot² A - 1 = 2cot² 60° - 1= 2(1/√3)² - 1= 2/3 - 1 = -1/3
Hence your required answer is -1/3
Step-by-step explanation:
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