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If (\sqrt{5}=\frac{m}{n}) is in lowest form and (m^2=5n^2), what is the next aim after writing (m=5k)?

Answer and explanation

Correct answer: To show (n) is also divisible by (5)

Step 1: (m=5k) shows factor (5) in (m). Step 2: Substituting it in (m^2=5n^2) gives (n^2=5k^2). Step 3: Then (n) is also proved divisible by (5), giving contradiction.

Related tags

Sqrt5 ProofSubstitutionHardClass 10Proof Of Irrationality Of √2√3√5Proof Of Irrationality Of 2 3 5Real NumbersMathematics

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