5. Evaluate: sin- 30° + COS 30°
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sin30°+cos30°=1/2+(3)½/2
=[1+(3)½]/2
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Answer:
sin 30° = 1/2
cos 30° = √3/2
sin 30° + cos 30° = 1/2 + √3/2
= (√3 + 1) / 2
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