# The Solution only requires a Basic Rule, do you know what it is?

Calculus Level pending

Given that $$S=\frac { \sqrt { 4t-h } }{ \left( 2t-k \right) ^{ 2 } }$$ and $$h+k=12$$,

Find the values of $$h$$ and $$k$$ if $$\frac { dS }{ dt } =\frac { 6\left( 1-2t \right) }{ \left( 2t-k \right) ^{ 3 }\sqrt { 4t-h } }$$

×