If z = 1 –StartRoot 3 EndRooti, what is z3 ?

Suppose that x and y are both differentiable functions of t and are related by the given equation. use implicit differentiation with respect to t to determine startfraction dy over dt endfraction in terms of x, y, and startfraction dx over dt endfraction .

Could somebody me with this radical simplification?

Fast! find the length of cu. the triangles are similar. show your work.