Garrett Norris
02/29/2024 · Senior High School
\( \begin{array}{ll}\text { 15. } y=\cos \left(\frac{3 x^{2}}{x+2}\right) & \text { 16. } y=\cos ^{3}\left(\frac{x^{2}}{1-x}\right) \\ \begin{array}{ll}\text { 17. } y=(3 x-2)^{2}\left(3-x^{2}\right)^{2} & \text { 18. } y=\left(2-3 x^{2}\right)^{4}\left(x^{7}+3\right)^{3} \\ \text { 19. } y=\frac{(x+1)^{2}}{3 x-4} & \text { 20. } y=\frac{2 x-3}{\left(x^{2}+4\right)^{2}}\end{array}\end{array} \)
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