PDF chapter test TRY NOW

Write 'True' or 'False' and justify your answer in each of the following:
 
1. \sqrt{(1 - cos^2 \ \theta)sec^2 \ \theta} = tan \ \theta
 
2. If cos \ A + cos^2 \ A = 1, then sin^2 \ A + sin^4 \ A = 1.