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Problem 2 - Entrance Test

What is the value of 2 sin 30° cos 60°?

Correct: A

We know the standard trigonometric values: sin 30° = 1/2 and cos 60° = 1/2. Substitute these values into the expression: 2 × (1/2) × (1/2) = 1 × (1/2) = 1/2.