Calculus 1 Problem.

[echo94]

If two resistors with resistances R₁ and R₂ are connected in parallel, as in the figure below, then the total resistance R, measured in ohms (Ω), is given by

1/R = 1/R1 + 1/R2

If R₁ and R₂ are increasing at rates of 0.3 Ω/s and 0.2 Ω/s, respectively, how fast is R changing when R₁ = 80 Ω and


R₂ = 100 Ω?

 

[mmm4444bot]

What have you learned about related rates thus far? I don't want to type up a bunch of stuff that you've already done or know.

Have you done anything on this, yet? Do you know what the following notation means?

dR₁/dt = ?

Please see also THIS PAGE. Cheers :cool: