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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