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Coordinate Geometry
Question
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 The expanded form of (x - y - z)2 is
  • x2 + y2 + z2 - 2xy + 2yz - 2zx
  • x2 + y2 + z2 - xy + yz - zx
  •  x2 + y2 + z2 + 2xy - 2yz - 2zx
  • x2 + y2 + z2 + 2xy + 2yz + 2zx

Answer

A.

x2 + y2 + z2 - 2xy + 2yz - 2zx

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Some More Questions From Coordinate Geometry Chapter

Find the value of n, given (81)5/n = 243.

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

4x2 - 3x + 7

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.

x10+ y3 + t50