1.

Rationalise ...........2+3/4-√4 ......,..,,.,..,.,.,.,.,.,.,.

Answer»

\frac{2 + 3}{4 - \sqrt{4} } \\ \\ = \geqslant \frac{5}{4 - \sqrt{4} } \\ \\ = \geqslant \frac{5}{4 - \sqrt{4} } \times \frac{4 + \sqrt{4} }{4 + \sqrt{4} } \\ \\ = \geqslant \frac{20 + 5 \sqrt{4} }{ {4}^{2} - { \sqrt{4} }^{2} } \\ \\ = \geqslant \frac{20 + 5 \sqrt{4} }{16 - 4} \\ \\ = \geqslant \frac{20 + 5 \sqrt{4} }{12} \\ \\ = \geqslant \frac{5(4 + \sqrt{4} )}{12}


Discussion

No Comment Found

Related InterviewSolutions