Question

Помогите с решением!

Answer 1

$1)sqrt{(sqrt{5}-sqrt{7})^{2}}+sqrt{(sqrt{7}-4)^{2}}=|sqrt{5}-sqrt{7}|+|sqrt{7}-4|=sqrt{7}-sqrt{5}+4-sqrt{7}=4-sqrt{5}\\2)sqrt{(1-sqrt{2})^{2}}-sqrt{(3-sqrt{2})^{2}}=|1-sqrt{2}|-|3-sqrt{2}|=sqrt{2}-1-(3-sqrt{2})=sqrt{2}-1-3+sqrt{2}=2sqrt{2}-4$

Answer 2

Ответ:

Объяснение:а)=I √5-√7 I+I √7-4I =-√5+√7-√7+4=4-√5.

b)=I1-√2I-I 3-√2I=√2-1-3+√2=-4+2√2.