Problem 4: Given a function COS X V= 1 - sin x Compute for the Day . Explain the answer and the procedures you applied briefly. Problem 5: Given a function N COS X y= 1 + sin x Determine the value of y'. Explain the answer and the procedures you applied briefly. Problem 6: Given a function f(x) = (3x2 +4x - 6)8 Determine the value of f"(x). Explain the answer and the procedures you applied briefly