Mathematics · Trigonometry
In a right-angled trapezium ABCD, AB is parallel to DC and perpendicular to BC. If the diagonal BD = 13 cm, DC = 5 cm, and AB = 14 cm, then for angles φ = ∠DBC and θ = ∠DAB, find the value of the expression sin(φ) + tan(θ)sin(φ) - tan(θ).
- 1-732
- 273
- 3635
- 4-6737✓
Correct answer
-6737
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