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கணிதம்
Class 9
இயற்கணிதம்
இயற்கணித முற்றொருமை
1.
சரியான விடையைத் தேர்ந்தெடு
Exercise condition:
2
m.
1
. \((x + y)(x^2 - xy + y^2)=\)
\((x + y)^3\)
\((x - y)^3\)
\((x^3 - y^3)\)
\((x^3 + y^3)\)
2
. \((a + b - c)^2=\)
\((a + b + c)^2\)
\((-a - b + c)^2\)
\((a - b + c)^2\)
\((a - b - c)^2\)
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