If it is given that √6 is an irrational number, prove that (7 + 5√6 ) is an irrational number.
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let ( 7 - 6√5 ) = a/b ( i.e; a form of rational no.) Here , LHS is in the form of a rational number whereas RHS i.e ; √5 is an irrational number. Hence, our assumption is wrong. Therefore, we can say that (7 - 6√5) is an irrational number....
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