PDF chapter test TRY NOW

\(\frac{\sec 53^{\circ}}{\text{cosec}\,37^{\circ}}\) \(-\) \(\frac{\tan 22^{\circ}}{\cot 68^{\circ}}\) \(-\) \(\frac{\sin 17^{\circ}}{\cos 73^{\circ}}\) \(=\) .