Question

Tìm x,y,z biết:

\(\frac{x}{5}=\frac{y}{7}=\frac{z}{3}=x^2+y^2-z^2=585\)

Answer 1

x=15

y=21

z=9

Answer 2

x=15 

y=21

z=9

Answer 3

tich minh cho minh len thu 8 tren bang sep hang cai

Answer 4

(x,y,z)=(15;21;9)

Answer 5

x=15

y=21

z=9

Answer 6

Ap dung t/c cua day ti so bang nhau ta co: x/5=y/7=z/3=x^2/25=y^2/49=z^2/9=x^2+y^2-z^2/25+49-9=585/65=9 x=15„y=21„z=9