Q_r = (1/R) sqrt[L/C]; show that dQ_r/dC = -(1/(2R)) sqrt[L/C^3]

[PA3040D]

Please help to solved this question

 

[MarkFL]

Try using rational exponents instead of radicals, then apply the power rule, then convert back to radical notation.

 

[MarkFL]

For example, write:

\(\displaystyle Q_r=\frac{\sqrt{L}}{R}C^{-\frac{1}{2}}\)

 

[PA3040D]

Grate thanks
How de we think that way