Question

Tìm \(a,b\) thỏa mãn :

\(\left|15-a\right|+\left(b-18\right)^2\le0\)

Answer 1

a=15

b=18

Answer 2

\(\left|15-a\right|+\left(b-18\right)^2\le0\)

Ta có:

\(\left|15-a\right|\ge0\)

\(\left(b-18\right)^2\ge0\)

Trường hợp này xảy ra khi:

\(\left\{\begin{matrix}\left|15-a\right|=0\\\left(b-18\right)^2=0\end{matrix}\right.\Rightarrow\left\{\begin{matrix}a=15\\b=18\end{matrix}\right.\)