Question

Calculati ; $( \frac{ \sqrt{2}-1 }{ \sqrt{2} } - \frac{ \sqrt{3}+1 }{ \sqrt{3} } + \frac{3 \sqrt{2+}2 \sqrt{3} }{6} )ori \frac{3 \sqrt{7} }{2 \sqrt{5} }$

Answer 1

rationalizam

[ √2(√2-1)/2   -√3(√3+1)/3 + (3√2+2√3)/6]  * 3√7/ 2√5

[ (2-√2)/2 - (3+√3)/3  + (3√2+2√3)/6 ] * 3√7/2√5   aducem la acelasi numitor in paranteza

(6-3√2-6-2√3+3√2+2√3)/6 * 3√7/2√5

(6-6)/2 * √7/2√5

0/2 * √7/2√5=0

Answer 2

l-am scris in word, si l-am convertit, sper ca poti sa-l deschizi

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