Two exercises on derivation of advanced numbers 1. Find the derivative dy / DX of the function y = f (x) determined by the following parametric equation (1)x=2t,y=t^2 (2)x=te^-t,y=e^t 2. Use the logarithmic derivative method to find the derivatives of the following functions (1)y=x^x Please explain the above exercises in detail, thank you~

Two exercises on derivation of advanced numbers 1. Find the derivative dy / DX of the function y = f (x) determined by the following parametric equation (1)x=2t,y=t^2 (2)x=te^-t,y=e^t 2. Use the logarithmic derivative method to find the derivatives of the following functions (1)y=x^x Please explain the above exercises in detail, thank you~


1.(1)dy/dx=(dy/dt)/(dx/dt)=2t/2=t=x/2(2)dy/dx=(dy/dt)/(dx/dt)=e^t/(e^-t-te^-t)=y/(1/y-x)=y^2/(1-xy)2.y=x^x =e^(xlnx)lny=xlnxy'/y=lnx+1y'=y(lnx+1)=x^x(lnx+1)