I would like assistance with the following questions, please show all steps/work taken. thank you

1. Cedric substituted x = 3;- into the expression, 45in): + sin\": + cos\"; = 5 and saw the following: Il-sin (3;) + cos2 (g) + sin2 (125) = 5 and concluded that the expression was a trig identity. 15 Cedric correct? What was your process to rnake'this determination? [2 Cl 2. The range of f(x) = sinx is {y e R/1 s y s 1}, use this to determine the range of f(x) = csc 2:. Explain how you obtained the range. - i3 C] 3. Why do the graphs of reciprocal trigonometric functions have asymptotes at each zero of the corresponding primary trigonometric function? Provide an examlplek [2. C]