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If cot (x – 30°) = 1/√3, sin x = ?

A 1/2

C 1

D √3/2

Solution

Correct Answer: Option C

cot (x-30º) = 1/√3 = cot 60º
⇒ x-30º= 60º [As we know, cot 60º = 1/√3]
⇒ x = 90º
Now, sinx = sin90º = 1

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