giải giúp em với ajk:Đ
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]-->
<!--[if gte msEquation 12]> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]-->
<!--[if gte msEquation 12]> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]-->
<!--[if gte msEquation 12]> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]--><!--[if gte msEquation 12]--> mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style:
normal'>25<!--[endif]--><!--[if gte vml 1]--> coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe"
filled="f" stroked="f">
height:27pt'>
o:title="" chromakey="white"/>
<!--[endif]-->----- Nội dung dịch tự động từ ảnh -----
4
а) у :
5 -
7
4 | L5