Class/Course - Class XI

Subject - Math

Chapter - Trigonometric Equation and Inequation

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Q.1 ABCD is a trapezium such that AB and CD are parallel and BC ⊥ CD. If ∠ADB = θ , BC = p and CD = q, then AB is equal to
  $\frac{\left (p^{2} + q^{2} \right )sin\theta}{pcos\theta + q sin\theta}$
  $\frac{p^{2} + q^{2}cos\theta}{pcos\theta + qsin\theta}$
  $\frac{p^{2} + q^{2}}{p^{2}cos\theta + q^{2}sin\theta}$
  $\frac{\left (p^{2} + q^{2} \right )sin\theta}{\left (pcos\theta + q sin\theta \right )^{2}}$