Question

prove by the method of contradiction ,
" P:√4 is irrational "​

Answer 1

Answer:

let us consume that √4is rational then there exist two factors which are co prime ie hcf =1

√4=a/b

4=a2/b2

a2=4b2

hence 4 is a factor of a

let a = 4c

a2=16c2

b2=4c2

Step-by-step explanation:

hence 4 is a factor of b also

hence our consumption that √4is rational.is wrong

hence √4is irrational

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