Question

PROVE THAT UNDER ROOT 72 IS IRRATIONAL NUMBER.

Answer 1

Answer:

72 = 2*2*2*3*3

     = (2*2)*(3*3)*2

so square root of 72 =2*3 *root 2

                                 = 6 * root2

since root2 is irrational therefore 6*root2 is also irrational 

Thus square root of 72 is not rational

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Answer 2

Step-by-step explanation:

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