MediumRational expressions

OpenStax, Elementary Algebra 2e §8.5 Simplify Complex Rational Expressions · Exercise 45 · Algebra · Rational expressions

Simplify Complex Rational Expressions · Exercise 45

Electronics The resistance of a circuit formed by connecting two resistors in parallel is $\frac{1}{\frac{1}{R _{1}} + \frac{1}{R _{2}}}$ .

ⓐ Simplify the complex fraction $\frac{1}{\frac{1}{R _{1}} + \frac{1}{R _{2}}}$ .
ⓑ Find the resistance of the circuit when $R_{1} = 8$ and $R_{2} = 12$ .

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OpenStax, Elementary Algebra 2e · §8.5 Simplify Complex Rational Expressions · Exercise 45

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