Find the value of tan 45° + sin 30°.
A3/2CORRECT
B1/2
C2
D1
GCEMathematicsTrigonometry2024
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Why the answer is A, and why the others tempt you.
tan 45° = 1 and sin 30° = 1/2, so tan 45° + sin 30° = 1 + 1/2 = 3/2. Distractor D (1) could result from forgetting to add sin 30°, while distractor C (2) could come from using sin 30° = 1 incorrectly.
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