Question 3 $3.1$ Given that: $$ **{3} y {2}+\cosh \left(3 ytx^{2} ight)=2 y^{3} $$ Use implicit differentiation to find $\frac{d yHd x]$. Show all your steps. $3.2$ Use logarithmic differentiation to find $\frac{d yHd x)$ for $$ y=\frac{\left(x^{3}-x ight)^{5}}\tan (4 x)} $$ $3.36 Find the directional derivative $D_(a) f(2,3)$ in the direction of $(1,2)5 for $$ F(x, y)=2 x y^{2} . $$ SP.SD.319