Question

Задания простенькие поэтому по 2 номера.Ниже в коментариях(ссылка) на еще 2 таких же задания.
Решить не просто дав ответ----->ПРИМЕР ((Корень 49*81=63))
А решить нормально то есть вот так------>ПРИМЕР ((Корень 49*81=49*81=корень 3969=63))

Answer 1

№3
$sqrt{49*81}= sqrt{7^{2}*9 ^{2} }=7*9=63$

$sqrt{25*16}= sqrt{5^2*4^2} = sqrt{(5*4)^2} =5*4=20$

$sqrt{0.01*0.81}= sqrt{0.1^2*0.9^2}= sqrt{(0.1*0.9)^2}=0.1*0.9=0.09$

$sqrt{4*9}= sqrt{36}= sqrt{6^2}=6$

$sqrt{0.36*121}= sqrt{0.6^2*11^2}= sqrt{(0.6*11)^2}=0.6*11=6.6 \ \ sqrt{49*100}= sqrt{7^2*10^2}= sqrt{(70) ^{2} }=70 \ \ sqrt{0.04*1.69}= sqrt{0.2^2*1.3^2} = sqrt{(0.2*1.3)^2}= 0.2*1.3=0.26 \ \ sqrt{4.41*441}= sqrt{441*441*00.1}= sqrt{441^2*0.1^2}=441*0.1=44.1$

4.
$sqrt{ frac{25}{36} } = sqrt{ (frac{5}{6})^2 } = frac{5}{6}$

$sqrt{ frac{49}{25} }= sqrt{( frac{7}{5})^2 } = frac{7}{5}$

$sqrt{ frac{81}{100} } = sqrt{ (frac{9}{10} )^2}= frac{9}{10}=0.9$

$sqrt{ frac{144}{121} }= sqrt{( frac{12}{11} )^2}= frac{12}{11}$

$sqrt{7 frac{1}{9} }= sqrt{ frac{64}{9} }= sqrt{( frac{8}{3})^2 }= frac{8}{3}$

$sqrt{1 frac{15}{49} }= sqrt{ frac{64}{49} }= sqrt{( frac{8}{7})^2 } = frac{8}{7}$

$sqrt{5 frac{1}{16} }= sqrt{ frac{81}{16} }= sqrt{( frac{9}{4})^2} = frac{9}{4} =2.25$

$sqrt{1 frac{13}{36} }= sqrt{ frac{49}{36} } =sqrt{ (frac{7}{6})^2 }= frac{7}{6}$

Answer 2

там не 0.3 а 0.36

Answer 3

cgc

Answer 4

спс

Answer 5

7*9 = 63 в условии задачи тоже так

Answer 6

3
а)$sqrt{49*81} = sqrt{49} * sqrt{81} =7*9=63$
б)$sqrt{25*16} = sqrt{25} * sqrt{16} =5*4=20$
в)$sqrt{0,01*0,81} = sqrt{0,01} *sqrt{0,81} =0,1*0,9=0,09$
г)$sqrt{4*9} =sqrt{4} *sqrt{9} =2*3=6$
д)$sqrt{0,36*121} =sqrt{0,36}* sqrt{121} =0,6*11=6,6$
е)$sqrt{49*100} = sqrt{49} * sqrt{100} = 7*10=70$
ж)$sqrt{0,04*1,69} = sqrt{0,04} * sqrt{1,69} =0,2*1,3=0,26$
з)$sqrt{4,41*441} = sqrt{4,41}* sqrt{441} =2,1*21=44,1$
4
а)$sqrt{25/36} = sqrt{25} / sqrt{36} =5/6$
б)$sqrt{49/25} = sqrt{49} / sqrt{25} =7/5$
в)$sqrt{81/100} = sqrt{81}/ sqrt{100} =9/10$
г)$sqrt{144/121} = sqrt{144} /sqrt{121} =12/11$
д)$sqrt{7 1/9} =sqrt{64/9} = sqrt{64} / sqrt{9}=8/3$
е)$sqrt{1 15/49} = sqrt{64/49} =sqrt{64} /sqrt{49} =8/7$
ж)$sqrt{5 1/16} = sqrt{81/16} = sqrt{81} / sqrt{16} =9/4$
з)$sqrt{1 13/36} =sqrt{49/36} = sqrt{49} / sqrt{36} =7/6$