2013 · Q83
What is [cos²(45°+θ)+cos²(45°−θ)]/[tan(60°+θ)tan(30°−θ)] equal to?
Elementary MathematicsTrigonometry
- A−1
- B0
- C1
- D2
Explanation
Numerator=1; denominator=1 → 1. Answer C.
What is [cos²(45°+θ)+cos²(45°−θ)]/[tan(60°+θ)tan(30°−θ)] equal to?
Explanation
Numerator=1; denominator=1 → 1. Answer C.