1.

1/(√7-√6) - rationalise​

Answer»

Step-by-step explanation:

\frac{1}{ \sqrt{7}  -  \sqrt{6} }  \times  \frac{ \sqrt{7} +  \sqrt{6}  }{ \sqrt{7} +  \sqrt{6}  }

=  \frac{ \sqrt{7}  +  \sqrt{6} }{7 - 6}

=  \sqrt{7}  +  \sqrt{6}

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