Question

URGENTTT DAU COROANA SI 100 DE PUNCTE VA ROGGGGGG​

Answer 1

Răspuns:

$\sqrt{\dfrac{2^4}{3^6}} = \sqrt{\dfrac{(2^2)^2}{(3^3)^2}}=\dfrac{2^2}{3^3}=\dfrac{4}{27} \\\sqrt{\dfrac{3^4*5^6}{7^2}} =\sqrt{\dfrac{(3^2)^2*(5^3)^2}{7^2}} =\dfrac{3^2*5^3}{7}=\dfrac{9*125}{7}=\dfrac{1125}{7} \\\sqrt{\dfrac{12}{3^3*4^3} }= \sqrt{\dfrac{12}{3^2*3*4^2*4} }=\sqrt{\dfrac{12}{12*3^2*4^2} }=\sqrt{\dfrac{1}{(3*4)^2} }=\dfrac{1}{3*4}=\dfrac{1}{12}.\\\sqrt{\dfrac{3^2+4^2}{7^2+24^2} }=\sqrt{\dfrac{5^2}{25^2} }=\dfrac{5}{25}=\dfrac{1}{5}$

Explicație pas cu pas:

√0,81=0,9;  √0,16=0,4;   √1,96=1,4;   √4,41=2,1;   √20,25=4,5.