https://portal.ilc.tvo x D21 4.2 Working with sil X Learning activity 4.2 X G trigonometric value X G cosine derivative - ( X *Homework Help - C X + V X C ^ content.ca-central-1.content-service.brightspace.com/ScormEngineInterface/defaultui/player/modern.html? configuration=88030417-8c68-467e-ac6... . . . PPG Pulse Home - Peopl... o Mail - Asal Bagheri. ILC ONLINE SCHOOL Course Search | Aca.. Dashboard Program Requirem... Cengage Learning mo Musescore Learning activity 4.2: Working with sinusoidal functions MINDS ON ACTION CONSOLIDATION Step 2: Find critical numbers. s' = 2cost + sint 0 = 2cost + sint - 2cost = sint - 2 = sin t cost - 2 = tant Using the calculator, t = tan-1 (-2) t = -1.11 Learning Goals D = {ER/0