## Class/Course - Class XI

### Subject - Math

#### Chapter - Trigonometric Equation and Inequation

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 Dear User, Kindly login/register to view answer & explanation of each question. Click here to Login/Sign Up. 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 $\frac{\left (p^{2} + q^{2} \right )sin\theta}{pcos\theta + q sin\theta}$ $\frac{p^{2} + q^{2}cos\theta}{pcos\theta + qsin\theta}$ $\frac{p^{2} + q^{2}}{p^{2}cos\theta + q^{2}sin\theta}$ $\frac{\left (p^{2} + q^{2} \right )sin\theta}{\left (pcos\theta + q sin\theta \right )^{2}}$