Odpowiedź:
a) √81 *√100 * √25 = 9*10*5 = 450
b) (√36*√16):√49*√25 = (6*4):(7*5)=24:35=0,68
mam nadzieję że jest dobrze
[tex]a)\ \ \sqrt{81\cdot100\cdot25}=\sqrt{81}\cdot\sqrt{100}\cdot\sqrt{25}=9\cdot10\cdot5=90\cdot5=450\\\\b)\ \ \sqrt{\frac{36\cdot16}{49\cdot25}}=\frac{\sqrt{36\cdot16}}{\sqrt{49\cdot25}}=\frac{\sqrt{36}\cdot\sqrt{16}}{\sqrt{49}\cdot\sqrt{25}}= \frac{6\cdot4}{7\cdot5}=\frac{24}{35}[/tex]
[tex]\sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}\\\\\sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}[/tex]
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Odpowiedź:
a) √81 *√100 * √25 = 9*10*5 = 450
b) (√36*√16):√49*√25 = (6*4):(7*5)=24:35=0,68
mam nadzieję że jest dobrze
Verified answer
[tex]a)\ \ \sqrt{81\cdot100\cdot25}=\sqrt{81}\cdot\sqrt{100}\cdot\sqrt{25}=9\cdot10\cdot5=90\cdot5=450\\\\b)\ \ \sqrt{\frac{36\cdot16}{49\cdot25}}=\frac{\sqrt{36\cdot16}}{\sqrt{49\cdot25}}=\frac{\sqrt{36}\cdot\sqrt{16}}{\sqrt{49}\cdot\sqrt{25}}= \frac{6\cdot4}{7\cdot5}=\frac{24}{35}[/tex]
[tex]\sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}\\\\\sqrt{\frac{a}{b}}=\frac{\sqrt{a}}{\sqrt{b}}[/tex]