Question

please answer this question if you know​ explain briefly

Answer 1

(i) irrational

(ii) irrational

(ii) irrational

(iv) irrational

(v) irrational

when a no. is irrational?

• root of all prime number
• recurring decimal

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Answer 2

Step-by-step explanation:

Any number which can be written in p/q where p and q are integers and q not equal to 0 form a rational number.

• 2-√5 you cannot write it in p/q form. So it's irrational.

• (3+√23)-√23 Rational Number

3+√23-√23 here, +√23 and -√23 get cancelled leaving behind 3, which is a rational Number.

• 2√7/7√7 Rational Number

√7 gets cancelled from the numerator and denominator leaving behind 2/7 which is rational number.

• 1/√2 Irrational Number

• 2π Irrational Number

hope it helps

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