As the sun travels across the sky the shadow of a cabin recedes and the ground where the shadow once was, heats up. Let t be time measured in minutes from midnight on January 1, 2023. Also, let ( ) a(t) be the angle the sun makes with the base of the cabin (in radians), ( ) L(a) be the length of the shadow of the cabin from the base to its furthest point (in metres), and ( ) H(L) be the temperature of a particular point on the ground. Using the Chain Rule, write a derivative of the form ... dy dz dx dy ... that is equal to dt dH . What does each derivative represent? (The rate of change of...?)