Question

va rog ajutati-ma vă rog mult am nevoie repede ​

Answer 1

Răspuns:

Salutare !

$a)(2 \sqrt{3} - \sqrt{3} ) \times \sqrt{12}$

$\sqrt{3} \times \sqrt{12}$

$\sqrt{36} = 6$

$b)(( \frac{2}{3 \sqrt{11} } - \frac{3}{ \sqrt{44} } + \frac{4}{ \sqrt{176} }) \div \frac{5}{3 \sqrt{11} } ) {}^{ - 2}$

$(( \frac{2}{3 \sqrt{11} } - \frac{3}{2 \sqrt{11} } + \frac{4}{4 \sqrt{11} } ) \times \frac{3 \sqrt{11} }{5} ) {}^{ - 2}$

$(( \frac{2}{3 \sqrt{11} } - \frac{3}{2 \sqrt{11} } + \frac{1}{ \sqrt{11} } ) \times \frac{3 \sqrt{11} }{5} ) {}^{ - 2}$

$( \frac{1}{6 \sqrt{11} } \times \frac{3 \sqrt{11} }{5} ) {}^{ - 2}$

$( \frac{1}{2} \times \frac{1}{5} ) {}^{ - 2}$

$( \frac{1}{10} ) {}^{ - 2}$

$10 {}^{2} = 100$

Formula folosita la acest subpunct in atasament