ਇਹਨਾਂ ਵਿੱਚੋਂ ਕਿਹੜੀ ਅਪਰਿਮੇਯ ਸੰਖਿਆ ਨਹੀਂ ਹੈ? Which of the following is not an irrational number? निम्नलिखित में से कौन सी एक अपरिमेय संख्या नहीं है? *
5+ √5
(2+ √5 )√5
(2 + √5 )(2 - √5)
5√5
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Answer:
(2+√5)(2-√5) is not a irrational no. because when we multiply it,it became a rational no.
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