1.Given sec u= -3/2 and tan u>0, find the values of six trigonometric functions 2. Simply the expression sin x cos^2 x- sin x 3. Rewrite 1/1+sin x so that it is not in fractional form. Repeat for 1/1-sin x , 1/1+cos x, and 1/1-cos x 4. Verify the identity sec^2 0-1/ sec^2 0= sin^2 0