trigonometry

Related Questions

• If the radius of the circumcircle of an isosceles triangle $PQR$ is equal to $PQ(=PR),$then the angle P is

  ---

• If $\Delta ={{a}^{2}}-{{(b-c)}^{2}}$ , where $\Delta $ is the area of triangle $ABC$ , then tan A is equal to

  ---

• A tower subtends an angle $\alpha$ at a point A in the plane of its base and the angle of depression of the foot of the tower at a point l meters just above A is $\beta$. The height of the tower is

  ---

• If $p=\frac{2\sin \,\theta }{1+\cos \theta +\sin \theta }$, and $q=\frac{\cos \theta }{1+\sin \theta },$ then

  ---

• $(\sec 2A+1){{\sec }^{2}}A=$

  ---