Question

Show that 2+root7 is irrational

Answer 1

Let us assume that 2/√7 is rational number. Now, 2√7/7 = p/q ( as rational no. ... 2/ √7 is an irrational number.

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Answer 2

Answer:

As,root 7 is a irrational no

We know,

That if we add any number with irrational number ,the number will always be an irrational no

Hence,

2+ root 7 is also an irrational number.

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