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Find the Distance Between the Following Pairs of Points: P(1, –1, 0) and Q(2, 1, 2) - Mathematics

Find the distance between the following pairs of points: 

P(1, –1, 0) and Q(2, 1, 2)

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Solution

PQ =\[\sqrt{\left( x_2 - x_1 \right)^2 + \left( y_2 - y_1 \right)^2 + \left( z_2 - z_1 \right)^2}\] 

    =\[\sqrt{\left( 2 - 1 \right)^2 + \left( 1 + 1 \right)^2 + \left( 2 - 0 \right)^2}\]

  = \[\sqrt{1^2 + 2^2 + 2^2}\]

  =\[\sqrt{1 + 4 + 4}\]

=\[\sqrt{9}\]

   = 3

  Is there an error in this question or solution?
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APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 28 Introduction to three dimensional coordinate geometry
Exercise 28.2 | Q 1.1 | Page 9
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