Question

Doar e,f,g va rooog dau coroana

Answer 1

Explicație pas cu pas:

$( \frac{ \sqrt{3} }{2} ) {}^{ - 2} = (\frac{2}{ \sqrt{3} } ) {}^{2} = \frac{4}{3} \\ ( \frac{ - 2 \sqrt{3} }{3} ) {}^{ - 4} = ( \frac{3}{ - 2 \sqrt{3} } ) {}^{4} = \frac{81}{16 \times 9} = \frac{9}{16} \\ ( \frac{2}{ \sqrt{5} } ) {}^{ - 3} = ( \frac{ \sqrt{5} }{2} ) {}^{3} = \frac{5 \sqrt{5} }{8}$