Verify the identy below by showing the left side of the equation is equal to the right side. (1+\cos \theta )/(\sin \theta )+(\sin \theta )/(1+\cos \theta )=2csc\theta

Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.