Question

Answer 1

Bạn chụp rõ đề đi bạn

Answer 2

\(\sqrt[3]{27}+\sqrt[3]{64}-\sqrt[3]{125}\)\(=3+4+5=12\)

Answer 3

Câu 1:

\(b,\sqrt[3]{27}+\sqrt[6]{64}-\sqrt[3]{125}=3+4-5=2\)

Câu 2:

\(a,2>0\Rightarrow\) Hàm đồng biến

\(b,\text{Vì }A\left(0;4\right)\in y=2x+b\Leftrightarrow2\cdot0+b=4\Leftrightarrow b=4\)

\(c,A=\left(\sqrt{99}-\sqrt{18}-\sqrt{11}\right)\sqrt{11}+3\sqrt{22}\\ A=\left(3\sqrt{11}-3\sqrt{2}-\sqrt{11}\right)\sqrt{11}+3\sqrt{22}\\ A=\left(2\sqrt{11}-3\sqrt{2}\right)\sqrt{11}+3\sqrt{22}=22-3\sqrt{22}+3\sqrt{22}=22\)