Question : If A = 60°, B = 30°, then find the value of sin A cos B + cos A sin B.
Option 1: 0
Option 2: 12
Option 3: 13
Option 4: 1
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Correct Answer: 1
Solution : Given that A = 60°, B = 30° sin A cos B + cos A sin B = sin (A + B) = sin (60° + 30°) = sin 90° = 1 Hence, the correct answer is 1.
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