Объяснение:
2) x^2+4^2=13^2
x^2=13^2-4^2
x^2=169-16
x^2=√153
3)(√5)^2+(√5)^2=x^2
x^2= 2(√5)^2
x^2=10
x= √10
Объяснение:
2) x^2+4^2=13^2
x^2=13^2-4^2
x^2=169-16
x^2=√153
3)(√5)^2+(√5)^2=x^2
x^2= 2(√5)^2
x^2=10
x= √10