Question

Va rogggg eu frumosssssss​

Answer 1

Răspuns:

a) √(16/25) = √(4^2/5^2) = √(4/5)^2= 4/5

b) √(81/64) = √(9^2/8^2)=√(9/8)^2= 9/8

c) √(9/49) = √(3^2/7^2) = √(3/7)^2 = 3/7

d) √(144/169) = √(12^2/13^2) = √(12/13)^2 =

12/13

e) √(100/289) = √(10^2/17^2) = √(10/17)^2 =

10/17

f) √(256/225) = √(2^8/3^2+5^2) = √[2^4)^2/

(3.5)^2] = √(2^4/15)^2 = 2^4/15 = 16/15

g) √(196/289) = √[(2^2.7^2)/17^2] =

V[(2.7)^2/17^2] = √(14/17)^2 =14/17

h) √(625/324) = √[5^4/(2^2.3^4)] = √[(5^2)^2/

(2.3^2)^2] = √(5^2/18)^2 = 5^2/18 = 25/18

i) √(169/156) = √[13^2/(2^2.3.13)] =

13/2√(1/39) = 13/21√39 = 13√39/2.39 =

√39/2.3= √39/6

i) √(144/1225) = √(12^2/5^2.7^2) = √[12^2/

(5.7)^2] = √(12/35)^2 = 12/35

k) √(196/324) = √(14^2/2^2.3^4) = √[14^2/

(2.3^2)^2] = √(14/18)^2 = 14/18

1) √(361/484) = √[19^2/(2^2.11^2)] = √[19^2/

(2.11)^2 = √(19/22)^2 = 19/22

^ = simbol folosit pentru ridicarea la putere

/= linie de fracție