Solve the following.
$$\frac{\sin 40^\circ}{\cos 50^\circ} + \frac{\cosec 50^\circ}{\sec 40^\circ} - 4 \cos 50^\circ \cosec 40^\circ$$
$$\frac{\sin 40^\circ}{\cos 50^\circ} + \frac{\cosec 50^\circ}{\sec 40^\circ} - 4 \cos 50^\circ \cosec 40^\circ$$
=$$\frac{\sin 40^\circ}{\cos(90^\circ -Â 40^\circ)} + \frac{\cosec(90^\circ - 40^\circ)}{\sec 40^\circ} - 4 \cos(90^\circ - 40^\circ) \cosec 40^\circ$$
=$$\frac{\sin 40^\circ}{\sin 40^\circ} + \frac{\sec 40^\circ}{\sec 40^\circ} - 4 \sin40^\circ \cosec 40^\circ$$
= 1 +Â 1 - 4 = -2
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
