Question

prove that 7+2 root 5 is an irrational no
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Answer 1

Answer:

⏩⏩Hey, here is your answer.......

7+2√5 is irrational because, 2√5 is irrational..........

2√5 is irrational because √5 is irrational..........

√5 = 2.23606797749..........

so, √5 is irrational.....

hence, √5 is irrational, 2√5 is irrational,......

therefore, 7+2√5 is irrational..................................⏪⏪

Step-by-step explanation:

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Answer 2

7+2√5 is irrational because, 2√5 is irrational 2√5 is irrational because √5 is irrational.

√5 = 2.23606797749.so, √5 is irrational hence, √5 is irrational, 2√5 is irrational, therefore, 7+2√5 is irrational.