D Question 21 1 pts If sin y = x, then dy equals dx tan y it is possible to calculate dy/dx but the answer is not one of the other choices O sin y cos y sec y csc y O cot y D Question 22 1 pts The first step in using logarithmic differentiation to find the derivative of f(ac) = Vac+ 1(24 + 1)3/2 is to use the product rule to write In f(ac) = 2In(x + 1) + 3 In(24 + 1) \\In f(x)=\\frac12\\In(x+1)+\\frac32\\In(x^4+1) to use the chain rule to use the power rule O to write In f(x) = In va + 1 . In(x4 + 1)3/2