1. Find the derivative of the following functions: Cos ( x - 3) a. y(x) = (sin x + cos x) . x3 b. v(s) = sin s coss+52 2. Use the definition of sec 0 and the quotient rule to find the derivative of sec 0. 3. Use the definition of cot 0 and the quotient rule to find the derivative of cot 0. 4. Use the definition of csc 0 and the quotient rule to find the derivative of csco. 5. Find the derivative of t(x) = COs X secr+x3