Solve the Formula for the Specified Variable $\frac { 1 } { \mathrm { a } } + \frac { 1 } { \mathrm {~b} } = \frac { 1 } { \mathrm { c } } \quad$

question 250

Multiple Choice

Solve the formula for the specified variable.
- $\frac { 1 } { \mathrm { a } } + \frac { 1 } { \mathrm {~b} } = \frac { 1 } { \mathrm { c } } \quad$ for $\mathrm { c }$

• A) \(c = \frac { a b } { a + b }\)
• B) \(c = \frac { a + b } { a b }\)
• C) \(c = a + b\)
• D) \(c = a b ( a + b )\)

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