Question detail
exam warm-up: 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. 2
- C. 0
- D. 1/2 distractor 3
Answer
The correct answer is 1/2.
Explanation
The locked answer is 1/2. Work through the given values, keep one operation per line, and check the final step reaches 1/2.
Common mistake
Exact trigonometric values common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Higher only] Know exact values of tan for 0, 30, 45 and 60 degrees..
Show the method first, then give the final answer in the required form. Apply this directly to Exact trigonometric values.
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