Question

rationalize the denominator..
only the first and the last part..please solve and tell..fast Pleaseee....​

Answer 1

Answer:

$1.)\frac{3}{4 \sqrt{5} } \times \frac{4 \sqrt{5} }{4 \sqrt{5} } \\ = \frac{3(4 \sqrt{5} )}{( {4 \sqrt{5}) }^{2} } \\ = \frac{12 \sqrt{5} }{16 \times 5} \\ = \frac{12 \sqrt{5} }{80} \\ 2.) \frac{ \sqrt{2 } + \sqrt{3} }{ \sqrt{2 } - \sqrt{3} } \times \frac{ \sqrt{2} + \sqrt{3} }{ \sqrt{2} + \sqrt{3} } \\ = \frac{( \sqrt{2} + \sqrt{3} {)}^{2} }{ ({ \sqrt{2} })^{2} - { (\sqrt{3} })^{2} } \\ = \frac{( { \sqrt{2} })^{2} + ({ \sqrt{3} })^{2} + 2 \times \sqrt{2 } \times \sqrt{3} }{2 - 3} \\ = \frac{2 + 3 + 2 \sqrt{6} }{ - 1} \\ = - (5 + 2 \sqrt{6} ) \\ = - 5 - 2 \sqrt{6} \: \: \: \: answer$

I hope it will help you

Answer 2

Answer:

ok I'll follow u back.........