Using the sum and difference of cosines formula, find the exact value of cos 12 Enclose numerators and denominators in parentheses. For example, (a - b) / (1 + n). COS TT 12 Show your work and explain, in your own words, how you arrived at your answer. Equation Editor A - A- Ix BIUS X X Styles Font SizeSketch two periods of the graph of the function h (z) = Zaec (% (a: + 3)). Identify the stretching factor, period, and asymptotes. Enter the exact answers. Stretching factor : 2 Period: P = a @ Ii. Enter the aSymptotes of the function on the domain [P, P]. To enter 1r, type Pi. The eld below accepts a list of numbers or formulas separated by semicolons (e.g. 2; 4; 6 or e + 1; a: 1). The order of the list does not matter. Asymptotes: 2: : lg