Questions
MUF0091 Mathematics Unit 1 - Semester 1, 2025 12.5 Study Area 2 revision questions
Short answer
Evaluate cos\((\frac{7\pi}{8}) \). Round your answer to two decimal places.
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Step-by-Step Analysis
We are being asked to evaluate cos(7π/8) and round to two decimals.
First, observe that 7π/8 lies in the second quadrant, where cosine is negative.
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