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InterviewSolution
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Can anyone prove that √7 is irrational number? |
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Answer» Let √7 be a rational number say p/q where q is not equal to zero and p and q are coprime.√7=p/qSq. Both side7=p²/q²,7q²=p²--------(1)7q² is divisible by 7,p² is divisible by 7,p is divisible by 7, Let p=7a,Putting the value in equation 1.7q²=(7a)²7q²=49a²q²=7a²7a²is divisible by 7q² is divisible by 7q is divisible by 7Both p and q have common factor 7.Therefore our supposition is wrong.√7 is irrational. Mujhe solution chahiye yess nhi Yes Bt solution kaise dun??? Kya rohit ji.... prove ho gya....mera to |
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