Question detail
reasoning check: state the exact value of sin 30 degrees.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Mensuration and calculation
Question
- A. 1/2
- B. 5
- C. -3
- D. 2
Answer
The correct answer is 1/2.
Explanation
Trace the calculation before choosing. The verified method for Exact trigonometric values gives 1/2; no later explanation is allowed to change that value.
Common mistake
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